diff --git a/pkg/dbutil/dbutil.go b/database/dbutil.go
similarity index 69%
rename from pkg/dbutil/dbutil.go
rename to database/dbutil.go
index 57334298..4c205eb1 100644
--- a/pkg/dbutil/dbutil.go
+++ b/database/dbutil.go
@@ -12,47 +12,45 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package dbutil
+package database
 
 import (
 	"github.com/deckarep/golang-set"
-
-	"github.com/coreos/clair/database"
 )
 
 // DeduplicateNamespaces deduplicates a list of namespaces.
-func DeduplicateNamespaces(namespaces ...database.Namespace) []database.Namespace {
+func DeduplicateNamespaces(namespaces ...Namespace) []Namespace {
 	nsSet := mapset.NewSet()
 	for _, ns := range namespaces {
 		nsSet.Add(ns)
 	}
 
-	result := make([]database.Namespace, 0, nsSet.Cardinality())
+	uniqueNamespaces := make([]Namespace, 0, nsSet.Cardinality())
 	for ns := range nsSet.Iter() {
-		result = append(result, ns.(database.Namespace))
+		uniqueNamespaces = append(uniqueNamespaces, ns.(Namespace))
 	}
 
-	return result
+	return uniqueNamespaces
 }
 
 // DeduplicateFeatures deduplicates a list of list of features.
-func DeduplicateFeatures(features ...database.Feature) []database.Feature {
+func DeduplicateFeatures(features ...Feature) []Feature {
 	fSet := mapset.NewSet()
 	for _, f := range features {
 		fSet.Add(f)
 	}
 
-	result := make([]database.Feature, 0, fSet.Cardinality())
+	uniqueFeatures := make([]Feature, 0, fSet.Cardinality())
 	for f := range fSet.Iter() {
-		result = append(result, f.(database.Feature))
+		uniqueFeatures = append(uniqueFeatures, f.(Feature))
 	}
 
-	return result
+	return uniqueFeatures
 }
 
 // PersistPartialLayer wraps session PersistLayer function with begin and
 // commit.
-func PersistPartialLayer(datastore database.Datastore, layer *database.Layer) error {
+func PersistPartialLayer(datastore Datastore, layer *Layer) error {
 	tx, err := datastore.Begin()
 	if err != nil {
 		return err
@@ -67,7 +65,7 @@ func PersistPartialLayer(datastore database.Datastore, layer *database.Layer) er
 }
 
 // PersistFeatures wraps session PersistFeatures function with begin and commit.
-func PersistFeatures(datastore database.Datastore, features []database.Feature) error {
+func PersistFeatures(datastore Datastore, features []Feature) error {
 	tx, err := datastore.Begin()
 	if err != nil {
 		return err
@@ -82,7 +80,7 @@ func PersistFeatures(datastore database.Datastore, features []database.Feature)
 
 // PersistNamespaces wraps session PersistNamespaces function with begin and
 // commit.
-func PersistNamespaces(datastore database.Datastore, namespaces []database.Namespace) error {
+func PersistNamespaces(datastore Datastore, namespaces []Namespace) error {
 	tx, err := datastore.Begin()
 	if err != nil {
 		return err
@@ -97,20 +95,20 @@ func PersistNamespaces(datastore database.Datastore, namespaces []database.Names
 }
 
 // FindAncestry wraps session FindAncestry function with begin and rollback.
-func FindAncestry(datastore database.Datastore, name string) (database.Ancestry, bool, error) {
+func FindAncestry(datastore Datastore, name string) (Ancestry, bool, error) {
 	tx, err := datastore.Begin()
 	defer tx.Rollback()
 
 	if err != nil {
-		return database.Ancestry{}, false, err
+		return Ancestry{}, false, err
 	}
 
 	return tx.FindAncestry(name)
 }
 
 // FindLayer wraps session FindLayer function with begin and rollback.
-func FindLayer(datastore database.Datastore, hash string) (layer database.Layer, ok bool, err error) {
-	var tx database.Session
+func FindLayer(datastore Datastore, hash string) (layer Layer, ok bool, err error) {
+	var tx Session
 	if tx, err = datastore.Begin(); err != nil {
 		return
 	}
@@ -122,24 +120,24 @@ func FindLayer(datastore database.Datastore, hash string) (layer database.Layer,
 
 // DeduplicateNamespacedFeatures returns a copy of all unique features in the
 // input.
-func DeduplicateNamespacedFeatures(features []database.NamespacedFeature) []database.NamespacedFeature {
+func DeduplicateNamespacedFeatures(features []NamespacedFeature) []NamespacedFeature {
 	nsSet := mapset.NewSet()
 	for _, ns := range features {
 		nsSet.Add(ns)
 	}
 
-	result := make([]database.NamespacedFeature, 0, nsSet.Cardinality())
+	uniqueFeatures := make([]NamespacedFeature, 0, nsSet.Cardinality())
 	for ns := range nsSet.Iter() {
-		result = append(result, ns.(database.NamespacedFeature))
+		uniqueFeatures = append(uniqueFeatures, ns.(NamespacedFeature))
 	}
 
-	return result
+	return uniqueFeatures
 }
 
 // GetAncestryFeatures returns a list of unique namespaced features in the
 // ancestry.
-func GetAncestryFeatures(ancestry database.Ancestry) []database.NamespacedFeature {
-	features := []database.NamespacedFeature{}
+func GetAncestryFeatures(ancestry Ancestry) []NamespacedFeature {
+	features := []NamespacedFeature{}
 	for _, layer := range ancestry.Layers {
 		features = append(features, layer.GetFeatures()...)
 	}
@@ -148,7 +146,7 @@ func GetAncestryFeatures(ancestry database.Ancestry) []database.NamespacedFeatur
 }
 
 // UpsertAncestry wraps session UpsertAncestry function with begin and commit.
-func UpsertAncestry(datastore database.Datastore, ancestry database.Ancestry) error {
+func UpsertAncestry(datastore Datastore, ancestry Ancestry) error {
 	tx, err := datastore.Begin()
 	if err != nil {
 		return err
@@ -168,7 +166,7 @@ func UpsertAncestry(datastore database.Datastore, ancestry database.Ancestry) er
 
 // PersistNamespacedFeatures wraps session PersistNamespacedFeatures function
 // with begin and commit.
-func PersistNamespacedFeatures(datastore database.Datastore, features []database.NamespacedFeature) error {
+func PersistNamespacedFeatures(datastore Datastore, features []NamespacedFeature) error {
 	tx, err := datastore.Begin()
 	if err != nil {
 		return err
@@ -188,7 +186,7 @@ func PersistNamespacedFeatures(datastore database.Datastore, features []database
 
 // CacheRelatedVulnerability wraps session CacheAffectedNamespacedFeatures
 // function with begin and commit.
-func CacheRelatedVulnerability(datastore database.Datastore, features []database.NamespacedFeature) error {
+func CacheRelatedVulnerability(datastore Datastore, features []NamespacedFeature) error {
 	tx, err := datastore.Begin()
 	if err != nil {
 		return err
@@ -203,7 +201,7 @@ func CacheRelatedVulnerability(datastore database.Datastore, features []database
 }
 
 // IntersectDetectors returns the detectors in both d1 and d2.
-func IntersectDetectors(d1 []database.Detector, d2 []database.Detector) []database.Detector {
+func IntersectDetectors(d1 []Detector, d2 []Detector) []Detector {
 	d1Set := mapset.NewSet()
 	for _, d := range d1 {
 		d1Set.Add(d)
@@ -215,16 +213,16 @@ func IntersectDetectors(d1 []database.Detector, d2 []database.Detector) []databa
 	}
 
 	inter := d1Set.Intersect(d2Set)
-	result := make([]database.Detector, 0, inter.Cardinality())
+	detectors := make([]Detector, 0, inter.Cardinality())
 	for d := range inter.Iter() {
-		result = append(result, d.(database.Detector))
+		detectors = append(detectors, d.(Detector))
 	}
 
-	return result
+	return detectors
 }
 
 // DiffDetectors returns the detectors belongs to d1 but not d2
-func DiffDetectors(d1 []database.Detector, d2 []database.Detector) []database.Detector {
+func DiffDetectors(d1 []Detector, d2 []Detector) []Detector {
 	d1Set := mapset.NewSet()
 	for _, d := range d1 {
 		d1Set.Add(d)
@@ -236,17 +234,17 @@ func DiffDetectors(d1 []database.Detector, d2 []database.Detector) []database.De
 	}
 
 	diff := d1Set.Difference(d2Set)
-	result := make([]database.Detector, 0, diff.Cardinality())
+	detectors := make([]Detector, 0, diff.Cardinality())
 	for d := range diff.Iter() {
-		result = append(result, d.(database.Detector))
+		detectors = append(detectors, d.(Detector))
 	}
 
-	return result
+	return detectors
 }
 
 // MergeLayers merges all content in new layer to l, where the content is
 // updated.
-func MergeLayers(l *database.Layer, new *database.Layer) *database.Layer {
+func MergeLayers(l *Layer, new *Layer) *Layer {
 	featureSet := mapset.NewSet()
 	namespaceSet := mapset.NewSet()
 	bySet := mapset.NewSet()
diff --git a/database/pgsql/ancestry_test.go b/database/pgsql/ancestry_test.go
index 6cceb718..7f0a37f8 100644
--- a/database/pgsql/ancestry_test.go
+++ b/database/pgsql/ancestry_test.go
@@ -20,7 +20,6 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/coreos/clair/database"
-	"github.com/coreos/clair/pkg/testutil"
 )
 
 var upsertAncestryTests = []struct {
@@ -89,7 +88,7 @@ func TestUpsertAncestry(t *testing.T) {
 			actual, ok, err := tx.FindAncestry(test.in.Name)
 			assert.Nil(t, err)
 			assert.True(t, ok)
-			testutil.AssertAncestryEqual(t, test.in, &actual)
+			database.AssertAncestryEqual(t, test.in, &actual)
 		})
 	}
 }
@@ -132,7 +131,7 @@ func TestFindAncestry(t *testing.T) {
 			assert.Nil(t, err)
 			assert.Equal(t, test.ok, ok)
 			if test.ok {
-				testutil.AssertAncestryEqual(t, test.ancestry, &ancestry)
+				database.AssertAncestryEqual(t, test.ancestry, &ancestry)
 			}
 		})
 	}
diff --git a/database/pgsql/layer_test.go b/database/pgsql/layer_test.go
index fc22a83c..478b2171 100644
--- a/database/pgsql/layer_test.go
+++ b/database/pgsql/layer_test.go
@@ -20,7 +20,6 @@ import (
 	"github.com/stretchr/testify/assert"
 
 	"github.com/coreos/clair/database"
-	"github.com/coreos/clair/pkg/testutil"
 )
 
 var persistLayerTests = []struct {
@@ -136,7 +135,7 @@ func TestPersistLayer(t *testing.T) {
 				layer, ok, err := tx.FindLayer(test.name)
 				assert.Nil(t, err)
 				assert.True(t, ok)
-				testutil.AssertLayerEqual(t, test.layer, &layer)
+				database.AssertLayerEqual(t, test.layer, &layer)
 			}
 		})
 	}
@@ -184,7 +183,7 @@ func TestFindLayer(t *testing.T) {
 			assert.Nil(t, err)
 			assert.Equal(t, test.ok, ok)
 			if test.ok {
-				testutil.AssertLayerEqual(t, test.out, &layer)
+				database.AssertLayerEqual(t, test.out, &layer)
 			}
 		})
 	}
diff --git a/database/pgsql/testutil.go b/database/pgsql/testutil.go
index 05ed4fbf..1561e59d 100644
--- a/database/pgsql/testutil.go
+++ b/database/pgsql/testutil.go
@@ -21,7 +21,6 @@ import (
 
 	"github.com/coreos/clair/database"
 	"github.com/coreos/clair/pkg/pagination"
-	"github.com/coreos/clair/pkg/testutil"
 )
 
 // int keys must be the consistent with the database ID.
@@ -232,12 +231,12 @@ func AssertPagedVulnerableAncestriesEqual(t *testing.T, key pagination.Key, expe
 		return assert.Equal(t, expected, actual)
 	}
 
-	return testutil.AssertVulnerabilityEqual(t, &expected.Vulnerability, &actual.Vulnerability) &&
+	return database.AssertVulnerabilityEqual(t, &expected.Vulnerability, &actual.Vulnerability) &&
 		assert.Equal(t, expected.Limit, actual.Limit) &&
 		assert.Equal(t, mustUnmarshalToken(key, expected.Current), mustUnmarshalToken(key, actual.Current)) &&
 		assert.Equal(t, mustUnmarshalToken(key, expected.Next), mustUnmarshalToken(key, actual.Next)) &&
 		assert.Equal(t, expected.End, actual.End) &&
-		testutil.AssertIntStringMapEqual(t, expected.Affected, actual.Affected)
+		database.AssertIntStringMapEqual(t, expected.Affected, actual.Affected)
 }
 
 func mustUnmarshalToken(key pagination.Key, token pagination.Token) Page {
diff --git a/pkg/testutil/testutil.go b/database/testutil.go
similarity index 82%
rename from pkg/testutil/testutil.go
rename to database/testutil.go
index 91c2abd4..232e9202 100644
--- a/pkg/testutil/testutil.go
+++ b/database/testutil.go
@@ -1,4 +1,18 @@
-package testutil
+// Copyright 2018 clair authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package database
 
 import (
 	"encoding/json"
@@ -7,13 +21,11 @@ import (
 
 	"github.com/deckarep/golang-set"
 	"github.com/stretchr/testify/assert"
-
-	"github.com/coreos/clair/database"
 )
 
 // AssertDetectorsEqual asserts actual detectors are content wise equal to
 // expected detectors regardless of the ordering.
-func AssertDetectorsEqual(t *testing.T, expected, actual []database.Detector) bool {
+func AssertDetectorsEqual(t *testing.T, expected, actual []Detector) bool {
 	if len(expected) != len(actual) {
 		return assert.Fail(t, "detectors are not equal", "expected: '%v', actual: '%v'", expected, actual)
 	}
@@ -37,7 +49,7 @@ func AssertDetectorsEqual(t *testing.T, expected, actual []database.Detector) bo
 
 // AssertAncestryEqual asserts actual ancestry equals to expected ancestry
 // content wise.
-func AssertAncestryEqual(t *testing.T, expected, actual *database.Ancestry) bool {
+func AssertAncestryEqual(t *testing.T, expected, actual *Ancestry) bool {
 	if expected == actual {
 		return true
 	}
@@ -63,7 +75,7 @@ func AssertAncestryEqual(t *testing.T, expected, actual *database.Ancestry) bool
 
 // AssertAncestryLayerEqual asserts actual ancestry layer equals to expected
 // ancestry layer content wise.
-func AssertAncestryLayerEqual(t *testing.T, expected, actual *database.AncestryLayer) bool {
+func AssertAncestryLayerEqual(t *testing.T, expected, actual *AncestryLayer) bool {
 	if !assert.Equal(t, expected.Hash, actual.Hash) {
 		return false
 	}
@@ -76,7 +88,7 @@ func AssertAncestryLayerEqual(t *testing.T, expected, actual *database.AncestryL
 	}
 
 	// feature -> is in actual layer
-	hitCounter := map[database.AncestryFeature]bool{}
+	hitCounter := map[AncestryFeature]bool{}
 	for _, f := range expected.Features {
 		hitCounter[f] = false
 	}
@@ -131,9 +143,9 @@ func AssertElementsEqual(t *testing.T, expected, actual []interface{}) bool {
 
 // AssertFeaturesEqual asserts content in actual equals content in expected
 // regardless of ordering.
-func AssertFeaturesEqual(t *testing.T, expected, actual []database.Feature) bool {
+func AssertFeaturesEqual(t *testing.T, expected, actual []Feature) bool {
 	if assert.Len(t, actual, len(expected)) {
-		has := map[database.Feature]bool{}
+		has := map[Feature]bool{}
 		for _, nf := range expected {
 			has[nf] = false
 		}
@@ -154,7 +166,7 @@ func AssertFeaturesEqual(t *testing.T, expected, actual []database.Feature) bool
 
 // AssertLayerFeaturesEqual asserts content in actual equals to content in
 // expected regardless of ordering.
-func AssertLayerFeaturesEqual(t *testing.T, expected, actual []database.LayerFeature) bool {
+func AssertLayerFeaturesEqual(t *testing.T, expected, actual []LayerFeature) bool {
 	if !assert.Len(t, actual, len(expected)) {
 		return false
 	}
@@ -174,7 +186,7 @@ func AssertLayerFeaturesEqual(t *testing.T, expected, actual []database.LayerFea
 
 // AssertNamespacesEqual asserts content in actual equals to content in
 // expected regardless of ordering.
-func AssertNamespacesEqual(t *testing.T, expected, actual []database.Namespace) bool {
+func AssertNamespacesEqual(t *testing.T, expected, actual []Namespace) bool {
 	expectedInterfaces := []interface{}{}
 	for _, e := range expected {
 		expectedInterfaces = append(expectedInterfaces, e)
@@ -190,7 +202,7 @@ func AssertNamespacesEqual(t *testing.T, expected, actual []database.Namespace)
 
 // AssertLayerNamespacesEqual asserts content in actual equals to content in
 // expected regardless of ordering.
-func AssertLayerNamespacesEqual(t *testing.T, expected, actual []database.LayerNamespace) bool {
+func AssertLayerNamespacesEqual(t *testing.T, expected, actual []LayerNamespace) bool {
 	expectedInterfaces := []interface{}{}
 	for _, e := range expected {
 		expectedInterfaces = append(expectedInterfaces, e)
@@ -205,7 +217,7 @@ func AssertLayerNamespacesEqual(t *testing.T, expected, actual []database.LayerN
 }
 
 // AssertLayerEqual asserts actual layer equals to expected layer content wise.
-func AssertLayerEqual(t *testing.T, expected, actual *database.Layer) bool {
+func AssertLayerEqual(t *testing.T, expected, actual *Layer) bool {
 	if expected == actual {
 		return true
 	}
@@ -239,7 +251,7 @@ func AssertIntStringMapEqual(t *testing.T, expected, actual map[int]string) bool
 }
 
 // AssertVulnerabilityEqual asserts two vulnerabilities are equal.
-func AssertVulnerabilityEqual(t *testing.T, expected, actual *database.Vulnerability) bool {
+func AssertVulnerabilityEqual(t *testing.T, expected, actual *Vulnerability) bool {
 	return assert.Equal(t, expected.Name, actual.Name) &&
 		assert.Equal(t, expected.Link, actual.Link) &&
 		assert.Equal(t, expected.Description, actual.Description) &&
@@ -248,7 +260,7 @@ func AssertVulnerabilityEqual(t *testing.T, expected, actual *database.Vulnerabi
 		AssertMetadataMapEqual(t, expected.Metadata, actual.Metadata)
 }
 
-func castMetadataMapToInterface(metadata database.MetadataMap) map[string]interface{} {
+func castMetadataMapToInterface(metadata MetadataMap) map[string]interface{} {
 	content, err := json.Marshal(metadata)
 	if err != nil {
 		panic(err)
@@ -263,7 +275,7 @@ func castMetadataMapToInterface(metadata database.MetadataMap) map[string]interf
 }
 
 // AssertMetadataMapEqual asserts two metadata maps are equal.
-func AssertMetadataMapEqual(t *testing.T, expected, actual database.MetadataMap) bool {
+func AssertMetadataMapEqual(t *testing.T, expected, actual MetadataMap) bool {
 	expectedMap := castMetadataMapToInterface(expected)
 	actualMap := castMetadataMapToInterface(actual)
 	checked := mapset.NewSet()
diff --git a/ext/featurens/driver_test.go b/ext/featurens/driver_test.go
index 1218a852..1f463d45 100644
--- a/ext/featurens/driver_test.go
+++ b/ext/featurens/driver_test.go
@@ -8,7 +8,6 @@ import (
 	"github.com/coreos/clair/database"
 	"github.com/coreos/clair/ext/featurens"
 	"github.com/coreos/clair/pkg/tarutil"
-	"github.com/coreos/clair/pkg/testutil"
 
 	_ "github.com/coreos/clair/ext/featurens/alpinerelease"
 	_ "github.com/coreos/clair/ext/featurens/aptsources"
@@ -50,6 +49,6 @@ func TestNamespaceDetector(t *testing.T) {
 			return
 		}
 
-		testutil.AssertLayerNamespacesEqual(t, test.out, out)
+		database.AssertLayerNamespacesEqual(t, test.out, out)
 	}
 }
diff --git a/updater.go b/updater.go
index d8184178..e8eba706 100644
--- a/updater.go
+++ b/updater.go
@@ -21,8 +21,6 @@ import (
 	"sync"
 	"time"
 
-	"github.com/coreos/clair/pkg/dbutil"
-
 	"github.com/pborman/uuid"
 	"github.com/prometheus/client_golang/prometheus"
 	log "github.com/sirupsen/logrus"
@@ -210,7 +208,7 @@ func update(datastore database.Datastore, firstUpdate bool) {
 		namespaces = append(namespaces, ns)
 	}
 
-	if err := dbutil.PersistNamespaces(datastore, namespaces); err != nil {
+	if err := database.PersistNamespaces(datastore, namespaces); err != nil {
 		log.WithError(err).Error("Unable to insert namespaces")
 		return
 	}
diff --git a/worker.go b/worker.go
index 16f6a3e6..fc48c0c3 100644
--- a/worker.go
+++ b/worker.go
@@ -26,7 +26,6 @@ import (
 	"github.com/coreos/clair/ext/featurens"
 	"github.com/coreos/clair/ext/imagefmt"
 	"github.com/coreos/clair/pkg/commonerr"
-	"github.com/coreos/clair/pkg/dbutil"
 	"github.com/coreos/clair/pkg/strutil"
 	"github.com/coreos/clair/pkg/tarutil"
 )
@@ -102,7 +101,7 @@ func processRequests(imageFormat string, toDetect map[string]*processRequest) (m
 }
 
 func getProcessRequest(datastore database.Datastore, req LayerRequest) (preq *processRequest, err error) {
-	layer, ok, err := dbutil.FindLayer(datastore, req.Hash)
+	layer, ok, err := database.FindLayer(datastore, req.Hash)
 	if err != nil {
 		return
 	}
@@ -125,7 +124,7 @@ func getProcessRequest(datastore database.Datastore, req LayerRequest) (preq *pr
 		preq = &processRequest{
 			LayerRequest:  req,
 			existingLayer: &layer,
-			detectors:     dbutil.DiffDetectors(EnabledDetectors, layer.By),
+			detectors:     database.DiffDetectors(EnabledDetectors, layer.By),
 		}
 	}
 
@@ -140,18 +139,18 @@ func persistProcessResult(datastore database.Datastore, results map[string]*proc
 		namespaces = append(namespaces, r.newLayerContent.GetNamespaces()...)
 	}
 
-	features = dbutil.DeduplicateFeatures(features...)
-	namespaces = dbutil.DeduplicateNamespaces(namespaces...)
-	if err := dbutil.PersistNamespaces(datastore, namespaces); err != nil {
+	features = database.DeduplicateFeatures(features...)
+	namespaces = database.DeduplicateNamespaces(namespaces...)
+	if err := database.PersistNamespaces(datastore, namespaces); err != nil {
 		return err
 	}
 
-	if err := dbutil.PersistFeatures(datastore, features); err != nil {
+	if err := database.PersistFeatures(datastore, features); err != nil {
 		return err
 	}
 
 	for _, layer := range results {
-		if err := dbutil.PersistPartialLayer(datastore, layer.newLayerContent); err != nil {
+		if err := database.PersistPartialLayer(datastore, layer.newLayerContent); err != nil {
 			return err
 		}
 	}
@@ -196,19 +195,19 @@ func processLayers(datastore database.Datastore, imageFormat string, requests []
 func getProcessResultLayers(results map[string]*processResult) map[string]database.Layer {
 	layers := map[string]database.Layer{}
 	for name, r := range results {
-		layers[name] = *dbutil.MergeLayers(r.existingLayer, r.newLayerContent)
+		layers[name] = *database.MergeLayers(r.existingLayer, r.newLayerContent)
 	}
 
 	return layers
 }
 
 func isAncestryProcessed(datastore database.Datastore, name string) (bool, error) {
-	ancestry, ok, err := dbutil.FindAncestry(datastore, name)
+	ancestry, ok, err := database.FindAncestry(datastore, name)
 	if err != nil || !ok {
 		return ok, err
 	}
 
-	return len(dbutil.DiffDetectors(EnabledDetectors, ancestry.By)) == 0, nil
+	return len(database.DiffDetectors(EnabledDetectors, ancestry.By)) == 0, nil
 }
 
 // ProcessAncestry downloads and scans an ancestry if it's not scanned by all
@@ -255,7 +254,7 @@ func processAncestry(datastore database.Datastore, name string, layers []databas
 		return err
 	}
 
-	ancestryFeatures := dbutil.GetAncestryFeatures(ancestry)
+	ancestryFeatures := database.GetAncestryFeatures(ancestry)
 	log.WithFields(log.Fields{
 		"ancestry":       name,
 		"processed by":   EnabledDetectors,
@@ -263,17 +262,17 @@ func processAncestry(datastore database.Datastore, name string, layers []databas
 		"layer count":    len(ancestry.Layers),
 	}).Debug("compute ancestry features")
 
-	if err := dbutil.PersistNamespacedFeatures(datastore, ancestryFeatures); err != nil {
+	if err := database.PersistNamespacedFeatures(datastore, ancestryFeatures); err != nil {
 		log.WithField("ancestry", name).WithError(err).Error("could not persist namespaced features for ancestry")
 		return err
 	}
 
-	if err := dbutil.CacheRelatedVulnerability(datastore, ancestryFeatures); err != nil {
+	if err := database.CacheRelatedVulnerability(datastore, ancestryFeatures); err != nil {
 		log.WithField("ancestry", name).WithError(err).Error("failed to cache feature related vulnerability")
 		return err
 	}
 
-	if err := dbutil.UpsertAncestry(datastore, ancestry); err != nil {
+	if err := database.UpsertAncestry(datastore, ancestry); err != nil {
 		log.WithField("ancestry", name).WithError(err).Error("could not upsert ancestry")
 		return err
 	}
diff --git a/worker_test.go b/worker_test.go
index e6e58ad6..aef37985 100644
--- a/worker_test.go
+++ b/worker_test.go
@@ -28,8 +28,6 @@ import (
 	"github.com/coreos/clair/ext/featurefmt"
 	"github.com/coreos/clair/ext/featurens"
 	"github.com/coreos/clair/ext/versionfmt/dpkg"
-	"github.com/coreos/clair/pkg/dbutil"
-	"github.com/coreos/clair/pkg/testutil"
 
 	// Register the required detectors.
 	_ "github.com/coreos/clair/ext/featurefmt/dpkg"
@@ -203,7 +201,7 @@ func newMockDatastore() *mockDatastore {
 			}
 
 			layer, _ := session.copy.layers[hash]
-			dbutil.MergeLayers(&layer, &database.Layer{
+			database.MergeLayers(&layer, &database.Layer{
 				Hash:       hash,
 				By:         by,
 				Namespaces: namespaces,
@@ -359,7 +357,7 @@ func TestProcessLayers(t *testing.T) {
 
 	// Ensure each layer has expected namespaces and features detected
 	if blank, ok := datastore.layers["blank"]; ok {
-		testutil.AssertDetectorsEqual(t, EnabledDetectors, blank.By)
+		database.AssertDetectorsEqual(t, EnabledDetectors, blank.By)
 		assert.Len(t, blank.Namespaces, 0)
 		assert.Len(t, blank.Features, 0)
 	} else {
@@ -368,7 +366,7 @@ func TestProcessLayers(t *testing.T) {
 	}
 
 	if wheezy, ok := datastore.layers["wheezy"]; ok {
-		testutil.AssertDetectorsEqual(t, EnabledDetectors, wheezy.By)
+		database.AssertDetectorsEqual(t, EnabledDetectors, wheezy.By)
 		assert.Equal(t, []database.LayerNamespace{
 			{database.Namespace{"debian:7", dpkg.ParserName}, database.NewNamespaceDetector("os-release", "1.0")},
 		}, wheezy.Namespaces)
@@ -380,7 +378,7 @@ func TestProcessLayers(t *testing.T) {
 	}
 
 	if jessie, ok := datastore.layers["jessie"]; ok {
-		testutil.AssertDetectorsEqual(t, EnabledDetectors, jessie.By)
+		database.AssertDetectorsEqual(t, EnabledDetectors, jessie.By)
 		assert.Equal(t, []database.LayerNamespace{
 			{database.Namespace{"debian:8", dpkg.ParserName}, database.NewNamespaceDetector("os-release", "1.0")},
 		}, jessie.Namespaces)
@@ -578,8 +576,8 @@ func TestComputeAncestryFeatures(t *testing.T) {
 	ancestryLayers, detectors, err := computeAncestryLayers(layers)
 	require.Nil(t, err)
 
-	testutil.AssertDetectorsEqual(t, expectedDetectors, detectors)
+	database.AssertDetectorsEqual(t, expectedDetectors, detectors)
 	for i := range expected {
-		testutil.AssertAncestryLayerEqual(t, &expected[i], &ancestryLayers[i])
+		database.AssertAncestryLayerEqual(t, &expected[i], &ancestryLayers[i])
 	}
 }