diff --git a/Gemfile b/Gemfile
index 15915040b..65348b2a1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,4 +8,4 @@ gemspec
 # Workaround for bug in Bundler on JRuby
 # See https://github.com/bundler/bundler/issues/4157
 gem 'ast', '>= 1.1', '< 3.0'
-gem 'racc', '1.8.0'
+gem 'racc', '1.8.1'