diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 416d622..22253bd 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -36,7 +36,7 @@ jobs:
 
     - name: Test 'magit' Recipe  # magit is a large recipe
       env:
-        CI_BRANCH: master  # always build the master branch on this repo
+        CI_BRANCH: main    # always build the master branch on this repo
         EXPECT_ERROR: 2    # we expect it to have some nags
       run: RECIPE='(magit :fetcher github :repo "magit/magit" :files ("lisp/magit" "lisp/magit*.el" "lisp/git-rebase.el" "Documentation/magit.texi" "Documentation/AUTHORS.md" "LICENSE" (:exclude "lisp/magit-libgit.el")))' make