diff --git a/.travis.yml b/.travis.yml
index 8d874f6..6e02f1d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -44,7 +44,7 @@ script:
   # Install the toolchain and Python dependencies
   - brew uninstall python@2
   - brew install px4-sim
-  - pip3 install --user --upgrade pyserial empy toml pandas jinja2 pyyaml pyros-genmsg
+  - pip3 install --user --upgrade packaging pyserial empy toml pandas jinja2 pyyaml pyros-genmsg
 
   # Compile PX4 firmware
   - git clone -b master https://github.com/PX4/Firmware.git ~/Firmware