diff --git a/.github/workflows/checkpatch.yml b/.github/workflows/checkpatch.yml
index 4ed0a0519..0c120c0f2 100644
--- a/.github/workflows/checkpatch.yml
+++ b/.github/workflows/checkpatch.yml
@@ -1,4 +1,4 @@
-on: push
+on: pull_request
 
 name: Check Code Style
 
diff --git a/.github/workflows/linux-build.yml b/.github/workflows/linux-build.yml
index 53858a898..12d07e98b 100644
--- a/.github/workflows/linux-build.yml
+++ b/.github/workflows/linux-build.yml
@@ -1,4 +1,4 @@
-on: push
+on: pull_request
 
 name: Linux Build
 
diff --git a/.github/workflows/snapshot.yml b/.github/workflows/snapshot.yml
index 1a4a3f210..b5a9e07ee 100644
--- a/.github/workflows/snapshot.yml
+++ b/.github/workflows/snapshot.yml
@@ -2,7 +2,7 @@
 
 # Copyright (C) 2020 by Tarek BOUCHKATI <tarek.bouchkati@gmail.com>
 
-on: push
+on: pull_request
 
 name: OpenOCD Snapshot