diff --git a/.travis.yml b/.travis.yml
index 18a13949..c9990d79 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,6 +9,7 @@ sudo: false
 addons:
   apt:
     packages:
+    - libgmp3-dev
     - gfortran
     - gcc
     - liblapack-dev