diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 72c83cd3..4079398d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,6 +25,7 @@ jobs:
             { version: '2.12.10' },
             { version: '2.12.9' },
             { version: '2.12.8' },
+            { version: '2.13.6' },
             { version: '2.13.5' },
             { version: '2.13.4' },
             { version: '2.13.3' },