diff --git a/.travis.yml b/.travis.yml
index 0ff86701..dbd18f40 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,5 +12,11 @@ after_failure:
 
 before_script:
     # Install Nette Tester & Code Checker
-    - composer install --no-interaction --dev --prefer-source
-    - composer create-project nette/code-checker temp/code-checker ~2.5 --no-interaction --prefer-source
+    - travis_retry composer install --no-interaction --prefer-dist
+    - travis_retry composer create-project nette/code-checker temp/code-checker ~2.5 --no-interaction
+
+sudo: false
+
+cache:
+    directories:
+        - $HOME/.composer/cache