diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed23f9b..069d256 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [3.1.2] - 2019-05-20
+
+### Fixed
+
++ The previous release unintentionally included a `setup` script meant for
+  development only in the packaged gem. This has been removed.
+
 ## [3.1.1] - 2019-05-13
 
 ### Fixed
@@ -83,6 +90,7 @@
 + New RootRoute constraint.
 + Updated README, with new TravisCI url.
 
+[3.1.2]: https://github.com/thoughtbot/high_voltage/compare/v3.1.1...v3.1.2
 [3.1.1]: https://github.com/thoughtbot/high_voltage/compare/v3.1.0...v3.1.1
 [3.1.0]: https://github.com/thoughtbot/high_voltage/compare/v3.0.0...v3.1.0
 [3.0.0]: https://github.com/thoughtbot/high_voltage/compare/v2.4.0...v3.0.0
diff --git a/Gemfile.lock b/Gemfile.lock
index 8189f4c..65733b7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    high_voltage (3.1.1)
+    high_voltage (3.1.2)
 
 GEM
   remote: https://rubygems.org/
diff --git a/lib/high_voltage/version.rb b/lib/high_voltage/version.rb
index 26fa32b..56fc98c 100644
--- a/lib/high_voltage/version.rb
+++ b/lib/high_voltage/version.rb
@@ -1,3 +1,3 @@
 module HighVoltage
-  VERSION = "3.1.1".freeze
+  VERSION = "3.1.2".freeze
 end