diff --git a/.travis.yml b/.travis.yml
index e0158b3..07ee63b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -24,6 +24,7 @@ gcc_deps: &gcc_deps
     - libpq5
     - rpm
     - libhiredis-dev
+    - libev-dev
   sources:
     - ubuntu-toolchain-r-test