diff --git a/.github/workflows/cppcmake.yml b/.github/workflows/cppcmake.yml
index 3a977d42..123c4965 100644
--- a/.github/workflows/cppcmake.yml
+++ b/.github/workflows/cppcmake.yml
@@ -2,7 +2,8 @@ name: C/C++ CI
 
 on:
   push:
-    branches: ['*']
+    branches:
+      - master
     tags: ['*']
     paths:
       - '**'
diff --git a/.github/workflows/mingw_static.yml b/.github/workflows/mingw_static.yml
index e1e6d644..91cdb302 100644
--- a/.github/workflows/mingw_static.yml
+++ b/.github/workflows/mingw_static.yml
@@ -2,7 +2,8 @@ name: MinGW Windows static test
 
 on:
   push:
-    branches: ['*']
+    branches:
+      - master
     paths:
       - '**'
       - '!docs/**'