diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 432c22931..ddcd1b956 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -15,9 +15,6 @@ on:
       - 'v*'
       - 'dockerfile/*'
   pull_request:
-    branches:
-      - 'master'
-      - 'v*'
     paths-ignore:
       - 'README.md'
       - 'docs/**'
diff --git a/.github/workflows/validate.yml b/.github/workflows/validate.yml
index 0042f1c9a..b966702b9 100644
--- a/.github/workflows/validate.yml
+++ b/.github/workflows/validate.yml
@@ -13,9 +13,6 @@ on:
       - 'v*'
       - 'dockerfile/*'
   pull_request:
-    branches:
-      - 'master'
-      - 'v*'
 
 env:
   REPO_SLUG_ORIGIN: "moby/buildkit:latest"