diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 4add7a5e..205cb87d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -19,7 +19,7 @@ jobs:
         - '6.1'
         include:
         # rails 5.2 (EOL 6/22) supports ruby < 2.7 (2.6 EOL 3/22)
-        - ruby-version: '2.5'
+        - ruby-version: '2.6'
           rails-version: '5.2'
         # rails 6.0 (security EOL 6/23?) supports ruby < 2.8 (2.7 EOL 3/23?;)
         - ruby-version: '2.6'