diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bb45aff..80328b8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -91,10 +91,12 @@ jobs:
           platformio update
 
       - name: Build bare metal (stm32f429_disco)
-        run: platformio run -e stm32f429_disco
+        run: source .venv/bin/activate
+          platformio run -e stm32f429_disco
 
       - name: Build emulator (sdl2, 64bits)
-        run: platformio run -e emulator_64bits
+        run: source .venv/bin/activate
+          platformio run -e emulator_64bits
 
   Windows:
     runs-on: windows-2019