diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index e1a90d2..9ae95ea 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -41,7 +41,7 @@ jobs:
           composer update sebastian/comparator
 
       - name: Configure matchers
-        uses: mheap/phpunit-matcher-action@master
+        uses: mheap/phpunit-matcher-action@main
 
       - name: Execute tests
         run: vendor/bin/phpunit --teamcity