diff --git a/.github/workflows/platformio.yml b/.github/workflows/platformio.yml
index 43995b5..6769edd 100644
--- a/.github/workflows/platformio.yml
+++ b/.github/workflows/platformio.yml
@@ -14,8 +14,7 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install -U platformio
-        # pip install -U platformio==4.2.1
+        pip install -U platformio==4.2.1
         # pip install -U --upgrade platformio # Needed? if we use this, then compilation fails for some boards!
     - name: Run PlatformIO
       run: |