diff --git a/.github/workflows/Continuous-Integration.yml b/.github/workflows/Continuous-Integration.yml
index 3d772c756d..8a3c340aaa 100644
--- a/.github/workflows/Continuous-Integration.yml
+++ b/.github/workflows/Continuous-Integration.yml
@@ -1,11 +1,15 @@
 name: STM32 Core Continuous Integration
 on:
   push:
+    branches:
+      - master
     paths-ignore:
       - '*.json'
       - '**.md'
       - keywords.txt
       - CI/**
+      - '!CI/build/arduino-cli.py'
+      - '!CI/build/platformio-builder.py'
       - tools/**
   pull_request:
     paths-ignore:
@@ -13,6 +17,8 @@ on:
       - '**.md'
       - keywords.txt
       - CI/**
+      - '!CI/build/arduino-cli.py'
+      - '!CI/build/platformio-builder.py'
       - tools/**
 jobs:
   astyle_check: