diff --git a/.travis.yml b/.travis.yml
index 7a52653b2c1911fe3712574b35d043b791a77a31..ca0549782335bba211c8f7c0c932b36cc006a190 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -48,13 +48,12 @@ matrix:
   # that's why we need to install g++-6 to get the lastest version
   - os: linux
     env:
-      - LLVM_VERSION=3.8.1
+      - COMPILER=clang++-4.0
       - SPECIAL=sanitizer
     addons:
       apt:
-        sources: ['ubuntu-toolchain-r-test']
-        packages: g++-6
-    compiler: clang
+        sources: ['ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-4.0']
+        packages: ['g++-6', 'clang-4.0']
     before_script:
       - make clang_sanitize