diff --git a/CHANGELOG.md b/CHANGELOG.md
index a6c64c3..9fa646b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,24 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## 1.3.1 (2023-06-21)
+
+### Fixed
+
+- Don't include development-related files into packaged gem to avoid confusing users or software tools. [@Envek][].
+
+  See discussion at [#26](https://github.com/Envek/after_commit_everywhere/issues/26).
+
+  Files packaged after this change:
+
+      CHANGELOG.md
+      LICENSE.txt
+      README.md
+      after_commit_everywhere.gemspec
+      lib/after_commit_everywhere.rb
+      lib/after_commit_everywhere/version.rb
+      lib/after_commit_everywhere/wrap.rb
+
 ## 1.3.0 (2022-10-28)
 
 ### Added
diff --git a/after_commit_everywhere.gemspec b/after_commit_everywhere.gemspec
index 2783d0f..002e7ef 100644
--- a/after_commit_everywhere.gemspec
+++ b/after_commit_everywhere.gemspec
@@ -22,7 +22,7 @@ Gem::Specification.new do |spec|
   spec.license       = "MIT"
 
   spec.files         = `git ls-files -z`.split("\x0").reject do |f|
-    f.match(%r{^(test|spec|features)/})
+    f.match(%r{^(\.|gemfiles/|bin/|spec/|tmp/|Appraisals|Gemfile|Rakefile)})
   end
   spec.bindir        = "exe"
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
diff --git a/lib/after_commit_everywhere/version.rb b/lib/after_commit_everywhere/version.rb
index a8e59db..fc2dccc 100644
--- a/lib/after_commit_everywhere/version.rb
+++ b/lib/after_commit_everywhere/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module AfterCommitEverywhere
-  VERSION = "1.3.0"
+  VERSION = "1.3.1"
 end