diff --git a/.travis.yml b/.travis.yml
index 8eee088..f553d76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,8 @@ os: linux
 dist: trusty
 addons:
     apt:
+        config:
+            retries: true
         sources:
             - ubuntu-toolchain-r-test
             - llvm-toolchain-trusty-5.0