diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cb8ad94..f0a3e79 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,7 +23,7 @@ jobs:
             cpu: amd64
           #- os: windows
             #cpu: i386
-        branch: [version-1-2, version-1-6]
+        nim: [stable]
         include:
           - target:
               os: linux