diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 7151269c..7652b03f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,7 +5,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        ruby: [2.5, 2.6, 2.7, '3.0', 3.1, truffleruby]
+        ruby: [2.5, 2.6, 2.7, '3.0', 3.1]
 
     runs-on: ubuntu-latest