diff --git a/jest.config.js b/jest.config.js
index 3017fba1..beda6ad6 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -7,6 +7,7 @@ module.exports = {
     modulePathIgnorePatterns: [
         'node_modules',
         'utils/windowUtils.js',
+        'utils/promiseUtils.js',
     ],
     collectCoverageFrom: [
         'utils/**.js',
diff --git a/package.json b/package.json
index 3467d307..1fe60c8a 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
         "styled-components": "^3.3.3",
         "styled-media-query": "^2.0.2",
         "styled-normalize": "^8.0.0",
-        "trezor-connect": "5.0.30",
+        "trezor-connect": "../connect/src/index.js",
         "web3": "^0.19.0",
         "webpack": "^4.16.3",
         "webpack-bundle-analyzer": "^2.13.1",
diff --git a/src/utils/__tests__/__snapshots__/networkUtils.test.js.snap b/src/utils/__tests__/__snapshots__/networkUtils.test.js.snap
new file mode 100644
index 00000000..514a0f3d
--- /dev/null
+++ b/src/utils/__tests__/__snapshots__/networkUtils.test.js.snap
@@ -0,0 +1,13 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`network utils JSONRequest ok 1`] = `
+Object {
+  "test_json": "01234",
+}
+`;
+
+exports[`network utils httpRequest json ok response 1`] = `
+Object {
+  "test_json": "12345",
+}
+`;
diff --git a/src/utils/__tests__/networkUtils.test.js b/src/utils/__tests__/networkUtils.test.js
index 190707ce..b5b00116 100644
--- a/src/utils/__tests__/networkUtils.test.js
+++ b/src/utils/__tests__/networkUtils.test.js
@@ -5,11 +5,15 @@ describe('network utils', () => {
         fetch.resetMocks();
     });
 
-    it('httpRequest', () => {
-
+    it('httpRequest json ok response', async () => {
+        fetch.mockResponse(JSON.stringify({ test_json: '12345' }));
+        const result = await networkUtils.httpRequest('/test/', 'json');
+        expect(result).toMatchSnapshot();
     });
 
-    it('JSONRequest', () => {
-
+    it('JSONRequest ok', async () => {
+        fetch.mockResponse(JSON.stringify({ test_json: '01234' }));
+        const result = await networkUtils.JSONRequest('/test/');
+        expect(result).toMatchSnapshot();
     });
 });