diff --git a/CHANGELOG.md b/CHANGELOG.md
index 32566af..10e12c0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.5.1
+
+- Fix missing `bundler` require - thanks @lpender via [#6][pr-6]
+
+[pr-6]: https://github.com/odlp/jet_black/pull/6
+
 ## v0.5.0
 
 - `stdout` and `stderr` now keep any trailing newlines at the end of the string.
diff --git a/Gemfile.lock b/Gemfile.lock
index fdbbbaf..8630119 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    jet_black (0.5.0)
+    jet_black (0.5.1)
 
 GEM
   remote: https://rubygems.org/
diff --git a/lib/jet_black/version.rb b/lib/jet_black/version.rb
index 8a1c04c..21cf160 100644
--- a/lib/jet_black/version.rb
+++ b/lib/jet_black/version.rb
@@ -1,3 +1,3 @@
 module JetBlack
-  VERSION = "0.5.0"
+  VERSION = "0.5.1"
 end