diff --git a/.travis.yml b/.travis.yml
index 0475769d..378c7e48 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,3 +6,4 @@ script: mkdir build && cd build && cmake .. && make
 before_install:
   - sudo apt-get update -qq
   - sudo apt-get install -y qtmobility-dev libprotobuf-dev protobuf-compiler libqt4-dev
+cache: apt