diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 3e0574a..e4e7076 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -9,8 +9,6 @@ jobs:
     strategy:
       matrix:
         ruby-version:
-          - '2.5'
-          - '2.6'
           - '2.7'
           - '3.0'
           - '3.2'