diff --git a/.travis.yml b/.travis.yml
index 52f3f4a..cf6a6e1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,6 +24,7 @@ env:
   - WP_VERSION=trunk WP_MULTISITE=1
 
 install:
+  - composer self-update --1
   - npm install
   - export DEV_LIB_PATH="vendor/xwp/wp-dev-lib/scripts"
   - source "$DEV_LIB_PATH/travis.install.sh"