diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0537641..b61353f 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -10,7 +10,7 @@ jobs:
 
     strategy:
       matrix:
-        ruby: ['3.0', '3.1', '3.2']
+        ruby: ['3.1', '3.2']
         redmine: ['5.0-stable', '5.1-stable', 'master']
         db: ['postgres', 'mysql']
         exclude: