diff --git a/.travis.yml b/.travis.yml
index 1f3eefb..3273b89 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,6 +11,13 @@ before_install:
   - "cabal sandbox init --sandbox=../.cabal-sandbox"
   - "cabal sandbox add-source ../hask-irc-core/"
   - "cabal sandbox add-source ../hask-irc-handlers/"
+script:
+  - cd hask-irc-core
+  - cabal clean && cabal install
+  - cd ../hask-irc-handlers
+  - cabal clean && cabal install
+  - cd ../hask-irc-runner
+  - cabal clean && cabal install
 notifications:
   email: true
   irc: