diff --git a/.github/workflows/actions_cpplint.yml b/.github/workflows/actions_cpplint.yml
index c414f6b5..de8381c5 100644
--- a/.github/workflows/actions_cpplint.yml
+++ b/.github/workflows/actions_cpplint.yml
@@ -3,7 +3,7 @@ name: Check Commit
 on:
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   coding-style:
diff --git a/.github/workflows/build_linux.yml b/.github/workflows/build_linux.yml
index 5b9a9dfd..2b13fe23 100644
--- a/.github/workflows/build_linux.yml
+++ b/.github/workflows/build_linux.yml
@@ -3,10 +3,10 @@ name: Linux
 on:
   pull_request:
     branches:
-      - master
+      - main
   push:
     branches:
-      - master
+      - main
 
 jobs:
   build:
diff --git a/.github/workflows/build_win.yml b/.github/workflows/build_win.yml
index 2a344bc5..436896b6 100644
--- a/.github/workflows/build_win.yml
+++ b/.github/workflows/build_win.yml
@@ -3,10 +3,10 @@ name: Windows
 on:
   pull_request:
     branches:
-      - master
+      - main
   push:
     branches:
-      - master
+      - main
 
 jobs:
   build:
@@ -26,4 +26,4 @@ jobs:
     - uses: actions/upload-artifact@v3
       with:
         name: result
-        path: build/src\thorvg*
\ No newline at end of file
+        path: build/src\thorvg*
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 10b15e81..518079c7 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -13,10 +13,10 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "master" ]
+    branches: [ "main" ]
   pull_request:
     # The branches below must be a subset of the branches above
-    branches: [ "master" ]
+    branches: [ "main" ]
 
 jobs:
   analyze:
diff --git a/.github/workflows/regression.yml b/.github/workflows/regression.yml
index e830d373..889cdc55 100644
--- a/.github/workflows/regression.yml
+++ b/.github/workflows/regression.yml
@@ -3,7 +3,7 @@ name: Regression Testing
 on:
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   test: