diff --git a/.travis.yml b/.travis.yml
index 6a2ab280..607524e8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,6 +7,12 @@ matrix:
   include:
   - compiler: clang
     env: DEPLOY_MAT=yes
+    addons:
+      apt:
+        sources:
+        - llvm-toolchain-precise-3.5
+        packages:
+        - clang-3.5
   - compiler: gcc
     addons:
       apt: