diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index c98f8f5..cf046b3 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -2,9 +2,9 @@ name: pomdp-py repo macOS build
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
diff --git a/.github/workflows/pre_commit.yml b/.github/workflows/pre_commit.yml
index fa519f9..8cb7ed2 100644
--- a/.github/workflows/pre_commit.yml
+++ b/.github/workflows/pre_commit.yml
@@ -3,10 +3,10 @@ name: Pre-Commit
 on:
   push:
     branches:
-      - master
+      - main
   pull_request:
     branches:
-      - master
+      - main
 
 jobs:
   pre-commit:
diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index 4a6c278..15c55d0 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -5,9 +5,9 @@ name: pomdp-py package
 
 on:
   push:
-    branches: [ "master", "dev-1.3.4-docs" ]
+    branches: [ "main" ]
   pull_request:
-    branches: [ "master", "dev-1.3.4-docs" ]
+    branches: [ "main" ]
 
 jobs:
   build:
diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 81a465e..810914c 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -2,9 +2,9 @@ name: pomdp-py repo ubuntu build
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
-    branches: [ master ]
+    branches: [ main ]
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}