diff --git a/.github/workflows/jazzy-source-build.yml b/.github/workflows/jazzy-source-build.yml
index dd341ef9..5822b6b9 100644
--- a/.github/workflows/jazzy-source-build.yml
+++ b/.github/workflows/jazzy-source-build.yml
@@ -16,9 +16,11 @@ on:
       - "**/package.xml"
       - "**/CMakeLists.txt"
       - "dave.jazzy.repos"
+  pull_request:
+    types: [opened, reopened]
   schedule:
-    # Run every day to detect flakiness and broken dependencies
-    - cron: "03 3 * * *"
+    # Run every week to detect flakiness and broken dependencies
+    - cron: "03 3 * * 1"
 
 env:
   ros_distro: jazzy
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 48ca25a8..1684173c 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -7,6 +7,8 @@ on:
     tags: ["*"]
     branches:
       - ros2
+  pull_request:
+    types: [opened, reopened]
 
 jobs:
   #   ament_lint: