diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index b42ee38..4079632 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -25,7 +25,7 @@ jobs:
       matrix:
         gap-branch:
           - master
-          - stable-4.11
+          - stable-4.12
 
     steps:
       - uses: actions/checkout@v3