diff --git a/.github/workflows/humble-build-binary.yml b/.github/workflows/humble-build-binary.yml
index 07128c3..a36c0b7 100644
--- a/.github/workflows/humble-build-binary.yml
+++ b/.github/workflows/humble-build-binary.yml
@@ -4,6 +4,8 @@
 name: Humble - Binary Build
 on:
   pull_request:
+    branches:
+      - humble
   push:
     branches:
       - humble
diff --git a/.github/workflows/humble-build-downstream.yml b/.github/workflows/humble-build-downstream.yml
index 43b01de..c1abe2a 100644
--- a/.github/workflows/humble-build-downstream.yml
+++ b/.github/workflows/humble-build-downstream.yml
@@ -4,6 +4,8 @@
 name: Humble - Downstream Build
 on:
   pull_request:
+    branches:
+      - humble
   push:
     branches:
       - humble
diff --git a/.github/workflows/humble-build-semi-binary.yml b/.github/workflows/humble-build-semi-binary.yml
index 15e0bbc..5d5eb76 100644
--- a/.github/workflows/humble-build-semi-binary.yml
+++ b/.github/workflows/humble-build-semi-binary.yml
@@ -4,6 +4,8 @@
 name: Humble - Semi-Binary Build
 on:
   pull_request:
+    branches:
+      - humble
   push:
     branches:
       - humble
diff --git a/.github/workflows/humble-ci-pre-commit.yml b/.github/workflows/humble-ci-pre-commit.yml
index a557802..b707737 100644
--- a/.github/workflows/humble-ci-pre-commit.yml
+++ b/.github/workflows/humble-ci-pre-commit.yml
@@ -3,6 +3,8 @@ name: Humble - Pre-Commit
 on:
   workflow_dispatch:
   pull_request:
+    branches:
+      - humble
 
 jobs:
   pre-commit:
diff --git a/.github/workflows/rolling-build-binary.yml b/.github/workflows/rolling-build-binary.yml
index 9c68b73..b254ea3 100644
--- a/.github/workflows/rolling-build-binary.yml
+++ b/.github/workflows/rolling-build-binary.yml
@@ -4,6 +4,8 @@
 name: Binary Build
 on:
   pull_request:
+    branches:
+      - ros2-master
   push:
     branches:
       - ros2-master
diff --git a/.github/workflows/rolling-build-downstream.yml b/.github/workflows/rolling-build-downstream.yml
index fdee6c1..bb5ca6a 100644
--- a/.github/workflows/rolling-build-downstream.yml
+++ b/.github/workflows/rolling-build-downstream.yml
@@ -4,6 +4,8 @@
 name: Downstream Build
 on:
   pull_request:
+    branches:
+      - ros2-master
   push:
     branches:
       - ros2-master
diff --git a/.github/workflows/rolling-build-semi-binary.yml b/.github/workflows/rolling-build-semi-binary.yml
index 5367f8a..8de5303 100644
--- a/.github/workflows/rolling-build-semi-binary.yml
+++ b/.github/workflows/rolling-build-semi-binary.yml
@@ -4,6 +4,8 @@
 name: Semi-Binary Build
 on:
   pull_request:
+    branches:
+      - ros2-master
   push:
     branches:
       - ros2-master
diff --git a/.github/workflows/rolling-ci-pre-commit.yml b/.github/workflows/rolling-ci-pre-commit.yml
index 02d515b..6469917 100644
--- a/.github/workflows/rolling-ci-pre-commit.yml
+++ b/.github/workflows/rolling-ci-pre-commit.yml
@@ -3,6 +3,8 @@ name: Pre-Commit
 on:
   workflow_dispatch:
   pull_request:
+    branches:
+      - ros2-master
 
 jobs:
   pre-commit: