diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6044a90..2595564 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -59,7 +59,9 @@ jobs:
           java -jar jruby.jar -S gem install bundler -v 2.5.21 --install-dir ${GEM_HOME}
           java -jar jruby.jar -S bundle install
 
-          find vendor/bundle/jruby/3.1.0 -mindepth 1 -maxdepth 1 -type d ! -name "gems" -exec rm -rf {} +
+          find vendor/bundle/jruby/3.1.0 -mindepth 1 -maxdepth 1 -type \
+            d ! -name "gems" ! -name "bin" ! -name "specifications" \
+            -exec rm -rf {} +
           zip -r ruby_ast_gen_${{ steps.taggerDryRun.outputs.new_tag }}.zip \
             lib exe sig vendor README.md LICENSE.txt Rakefile Gemfile ruby_ast_gen.gemspec