diff --git a/.travis.yml b/.travis.yml
index 4e13f12a..1325e43e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -184,10 +184,6 @@ matrix:
     env: LLVM_VERSION=3.8.1
     compiler: clang
 
-  - os: linux
-    env: LLVM_VERSION=3.9.0
-    compiler: clang
-
 #####################
 # installation step #
 #####################
@@ -202,7 +198,6 @@ cache:
     - ${TRAVIS_BUILD_DIR}/deps/llvm-3.7.1
     - ${TRAVIS_BUILD_DIR}/deps/llvm-3.8.0
     - ${TRAVIS_BUILD_DIR}/deps/llvm-3.8.1
-    - ${TRAVIS_BUILD_DIR}/deps/llvm-3.9.0
 
 
 install: