diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index f3f64141..93ff419d 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -25,12 +25,6 @@ jobs:
         experimental: [false]
         
         include:
-          - os: ubuntu
-            ruby: truffleruby
-            experimental: true
-          - os: ubuntu
-            ruby: jruby
-            experimental: true
           - os: ubuntu
             ruby: head
             experimental: true