diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index a0ae2a4..b170d9f 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -2,7 +2,7 @@ name: PR Check
 
 on:
   pull_request:
-    branches: [ main, master ]
+    branches: [ master ]
 
 jobs:
   version-check:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8c02110..427cfdd 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -2,7 +2,7 @@ name: Release
 
 on:
   push:
-    branches: [ main ]
+    branches: [ master ]
 
 jobs:
   verify_and_tag: