diff --git a/.travis.yml b/.travis.yml
index 4eae337887..128cce0a22 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,9 @@ services:
 cache:
   directories:
     - $HOME/.m2
+# the cache can grow constantly
+before_cache:
+  - rm -rf $HOME/.m2/repository/org/alfresco/alfresco-repository
 
 branches:
   only: