diff --git a/.travis.yml b/.travis.yml
index 4a03d48..2b0aa38 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,9 @@
 language: php
 
+notifications:
+  email:
+    on_success: never
+
 php:
   - 7.1
   - 7.2
@@ -10,6 +14,10 @@ matrix:
     - php: 7.1
       env: dependencies=lowest
 
+cache:
+  directories:
+    - $HOME/.composer/cache
+
 sudo: false
 
 before_script: