diff --git a/.github/workflows/sentry_rails_test.yml b/.github/workflows/sentry_rails_test.yml
index e070c15ba..f18e462d3 100644
--- a/.github/workflows/sentry_rails_test.yml
+++ b/.github/workflows/sentry_rails_test.yml
@@ -44,7 +44,7 @@ jobs:
           - { os: ubuntu-latest, ruby_version: "2.7", rails_version: 5.2.0 }
           - { os: ubuntu-latest, ruby_version: "2.7", rails_version: 6.0.0 }
           - { os: ubuntu-latest, ruby_version: "2.7", rails_version: 6.1.0 }
-          - { os: ubuntu-latest, ruby_version: "jruby", rails_version: 6.1.0 }
+          - { os: ubuntu-latest, ruby_version: "'jruby-9.4.4.0'", rails_version: 6.1.0 }
           - {
               os: ubuntu-latest,
               ruby_version: "3.2",
diff --git a/.github/workflows/sentry_sidekiq_test.yml b/.github/workflows/sentry_sidekiq_test.yml
index 195978c08..f2d21785e 100644
--- a/.github/workflows/sentry_sidekiq_test.yml
+++ b/.github/workflows/sentry_sidekiq_test.yml
@@ -22,7 +22,7 @@ jobs:
     strategy:
       matrix:
         sidekiq_version: ['5.0', '6.0', '7.0']
-        ruby_version: ['2.7', '3.0', '3.1', '3.2', jruby]
+        ruby_version: ['2.7', '3.0', '3.1', '3.2', 'jruby-9.4.4.0']
         os: [ubuntu-latest]
         include:
           - { os: ubuntu-latest, ruby_version: 2.4, sidekiq_version: 5.0 }
@@ -30,9 +30,9 @@ jobs:
           - { os: ubuntu-latest, ruby_version: 2.5, sidekiq_version: 6.0 }
           - { os: ubuntu-latest, ruby_version: 2.6, sidekiq_version: 5.0 }
           - { os: ubuntu-latest, ruby_version: 2.6, sidekiq_version: 6.0 }
-          - { os: ubuntu-latest, ruby_version: jruby, sidekiq_version: 5.0 }
-          - { os: ubuntu-latest, ruby_version: jruby, sidekiq_version: 6.0 }
-          - { os: ubuntu-latest, ruby_version: jruby, sidekiq_version: 7.0 }
+          - { os: ubuntu-latest, ruby_version: 'jruby-9.4.4.0', sidekiq_version: 5.0 }
+          - { os: ubuntu-latest, ruby_version: 'jruby-9.4.4.0', sidekiq_version: 6.0 }
+          - { os: ubuntu-latest, ruby_version: 'jruby-9.4.4.0', sidekiq_version: 7.0 }
           - { os: ubuntu-latest, ruby_version: '3.2', sidekiq_version: 7.0, options: { rubyopt: "--enable-frozen-string-literal --debug=frozen-string-literal" } }
           - { os: ubuntu-latest, ruby_version: '3.2', sidekiq_version: 7.0, options: { codecov: 1 } }
     steps: