diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index 9a13ba793..e99265243 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -2,7 +2,7 @@ name: PR
 
 on:
     pull_request:
-        branches: [ $default-branch ]
+        branches: [ master ]
 
 jobs:
     call-pr-workflow:
diff --git a/.github/workflows/testing-build.yml b/.github/workflows/testing-build.yml
index 005ed26ca..33379f925 100644
--- a/.github/workflows/testing-build.yml
+++ b/.github/workflows/testing-build.yml
@@ -2,7 +2,7 @@ name: Testing build (on PR)
 
 on:
     pull_request:
-        branches: [ $default-branch ]
+        branches: [ master ]
         types: [ labeled, opened, synchronize, reopened ]
 
 jobs: