diff --git a/.travis.yml b/.travis.yml
index 2a51ec9..c90b24d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -10,6 +10,7 @@ before_install:
   - sudo make install
   - cd ..
   - ./autogen.sh
+  - perlbrew use `perlbrew list | grep 5.20 | head -1`
   - cpanm Test::More IPC::Open3 Config::General Tie::IxHash
 compiler:
   - clang