diff --git a/.github/workflows/pry-diff-routes.yml b/.github/workflows/pry-diff-routes.yml
index 5a73e21..97a550e 100644
--- a/.github/workflows/pry-diff-routes.yml
+++ b/.github/workflows/pry-diff-routes.yml
@@ -12,7 +12,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
-        ruby: [2.4.9, 2.5.7, 2.6.5, 2.7.0, ruby-head, jruby-9.2.11.0, jruby-head, truffleruby-20.0.0, rbx-4.14]
+        ruby: [2.5, 2.6, 2.7]
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v2