diff --git a/.travis.yml b/.travis.yml
index f3b8ab2..f710a37 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,13 +2,13 @@ language: c
 dist: focal
 env:
  global: 
-   - apt-get install python-is-python3
-   - pip remove pyserial
-   - pip install pyserial
    - python /home/travis/.arduino15/packages/esp32/tools/esptool_py/3.0.0/esptool.py
    - ESP32TOOLS=/home/travis/.arduino15/packages/esp32/hardware/esp32/1.0.6/tools
    - MKSPIFFS=/home/travis/.arduino15/packages/esp32/tools/mkspiffs/0.2.3/mkspiffs
 before_install:
+   - apt-get install python-is-python3
+   - pip remove pyserial
+   - pip install pyserial
   - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_1.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :1 -ac -screen 0 1280x1024x16"
   - sleep 3
   - export DISPLAY=:1.0