diff --git a/README.md b/README.md
index 56b7820..5655c50 100644
--- a/README.md
+++ b/README.md
@@ -137,6 +137,15 @@ $ cat robots.html | pup ':contains("History")'
 </span>
 ```
 
+```bash
+$ cat robots.html | pup ':parent-of([action="edit"])'
+<span class="wb-langlinks-edit wb-langlinks-link">
+ <a action="edit" href="//www.wikidata.org/wiki/Q80776#sitelinks-wikipedia" text="Edit links" title="Edit interlanguage links" class="wbc-editpage">
+  Edit links
+ </a>
+</span>
+```
+
 For a complete list, view the [implemented selectors](#Implemented Selectors)
 section.
 
@@ -167,29 +176,31 @@ For further examples of these selectors head over to [MDN](
 https://developer.mozilla.org/en-US/docs/Web/CSS/Reference).
 
 ```bash
-cat index.html | pup '.class'
-cat index.html | pup '#id'
-cat index.html | pup 'element'
-cat index.html | pup 'selector + selector'
-cat index.html | pup 'selector > selector'
-cat index.html | pup '[attribute]'
-cat index.html | pup '[attribute="value"]'
-cat index.html | pup '[attribute*="value"]'
-cat index.html | pup '[attribute~="value"]'
-cat index.html | pup '[attribute^="value"]'
-cat index.html | pup '[attribute$="value"]'
-cat index.html | pup ':empty'
-cat index.html | pup ':first-child'
-cat index.html | pup ':first-of-type'
-cat index.html | pup ':last-child'
-cat index.html | pup ':last-of-type'
-cat index.html | pup ':only-child'
-cat index.html | pup ':only-of-type'
-cat index.html | pup ':contains("text")'
-cat index.html | pup ':nth-child(n)'
-cat index.html | pup ':nth-of-type(n)'
-cat index.html | pup ':nth-last-child(n)'
-cat index.html | pup ':nth-last-of-type(n)'
+pup '.class'
+pup '#id'
+pup 'element'
+pup 'selector + selector'
+pup 'selector > selector'
+pup '[attribute]'
+pup '[attribute="value"]'
+pup '[attribute*="value"]'
+pup '[attribute~="value"]'
+pup '[attribute^="value"]'
+pup '[attribute$="value"]'
+pup ':empty'
+pup ':first-child'
+pup ':first-of-type'
+pup ':last-child'
+pup ':last-of-type'
+pup ':only-child'
+pup ':only-of-type'
+pup ':contains("text")'
+pup ':nth-child(n)'
+pup ':nth-of-type(n)'
+pup ':nth-last-child(n)'
+pup ':nth-last-of-type(n)'
+pup ':not(selector)'
+pup ':parent-of(selector)'
 ```
 
 You can mix and match selectors as you wish.
diff --git a/pup.go b/pup.go
index 2ffd8ee..1590eb3 100644
--- a/pup.go
+++ b/pup.go
@@ -17,7 +17,7 @@ import (
 //       |/ \_( # |"
 //      C/ ,--___/
 
-var VERSION string = "0.3.3"
+var VERSION string = "0.3.4"
 
 func main() {
 	// process flags and arguments
diff --git a/pup.rb b/pup.rb
index 0d6f587..1dc8b5f 100644
--- a/pup.rb
+++ b/pup.rb
@@ -2,14 +2,14 @@ require 'formula'
 
 class Pup < Formula
   homepage 'https://github.com/EricChiang/pup'
-  version '0.3.3'
+  version '0.3.4'
 
   if Hardware.is_64_bit?
-    url 'https://github.com/EricChiang/pup/releases/download/v0.3.3/pup_darwin_amd64.zip'
-    sha1 'e5a74c032abd8bc81e4a12b06d0c071343811949'
+    url 'https://github.com/EricChiang/pup/releases/download/v0.3.4/pup_darwin_amd64.zip'
+    sha1 '5fec62701a49bfd5eaa4b9c980e9c06dcece78c6'
   else
-    url 'https://github.com/EricChiang/pup/releases/download/v0.3.3/pup_darwin_386.zip'
-    sha1 'cd7d18cae7d8bf6af8bdb04c963156a1b217dfcb'
+    url 'https://github.com/EricChiang/pup/releases/download/v0.3.4/pup_darwin_386.zip'
+    sha1 '1eb129c662d7e323c9b1e8f8ed3b8e28ce521434'
   end
 
   def install
diff --git a/release.sh b/release.sh
index 13c1da1..b782004 100755
--- a/release.sh
+++ b/release.sh
@@ -2,6 +2,8 @@
 
 set -e
 
+rm -f dist/*
+
 gox -output "dist/{{.Dir}}_{{.OS}}_{{.Arch}}"
 
 cd dist