diff --git a/.travis.yml b/.travis.yml
index 454b7e3..3f7f669 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 addons:
   apt:
     packages:
-    - clang-3.9
+    - clang-3.7
     - lib32stdc++6
     - lib32z1-dev
     - libc6-dev-i386
@@ -9,7 +9,7 @@ addons:
     - gcc-multilib
     - g++-multilib
     sources:
-    - llvm-toolchain-precise-3.9
+    - llvm-toolchain-precise-3.7
     - ubuntu-toolchain-r-test
 language: cpp
 branches: