diff --git a/.travis.yml b/.travis.yml
index b7791caa..1f90c932 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,6 +11,7 @@ matrix:
         - sudo apt update && sudo apt install curl gnupg2 lsb-release 
         - curl -s https://raw.githubusercontent.com/ros/rosdistro/master/ros.asc | sudo apt-key add -
         - sudo sh -c 'echo "deb [arch=amd64,arm64] http://packages.ros.org/ros2/ubuntu `lsb_release -cs` main" > /etc/apt/sources.list.d/ros2-latest.list'
+        - sudo apt update
         - sudo apt-get -y install ros-eloquent-desktop ros-eloquent-message-filters ros-eloquent-image-transport ros-eloquent-pcl-conversions
 
       script: