diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9353787658a..df82ab3540a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -65,6 +65,21 @@ jobs:
     - name: Run Ruby tests
       run: bundle exec rake compile_no_debug
 
+  build-jruby:
+    runs-on: ubuntu-latest
+    env:
+      JRUBY_OPTS: "--dev"
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up JRuby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: jruby
+        bundler-cache: true
+    - name: Compile generated Java files
+      run: jruby --dev -S bundle exec rake compile
+      shell: bash
+
   lex-ruby:
     runs-on: ubuntu-latest
     steps:
diff --git a/Gemfile b/Gemfile
index 90102c5b770..fedc01f1a06 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,4 +9,4 @@ gemspec
 gem "rake"
 gem "rake-compiler"
 gem "test-unit"
-gem "ruby_memcheck"
+gem "ruby_memcheck", platform: %i[ mri truffleruby mswin mingw x64_mingw ]