diff --git a/.travis.yml b/.travis.yml
index 56e2fb38..a7e21373 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,9 +8,9 @@ go:
 before_install:
   - echo $PATH
   - export PATH=`echo $PATH | sed -e 's/:\/usr\/local\/clang-3.5.0\/bin//'`
-  - wget http://security.ubuntu.com/ubuntu/pool/main/g/gcc-5/libstdc++6_5.4.0-6ubuntu1~16.04.4_amd64.deb
+  - wget http://security.ubuntu.com/ubuntu/pool/main/g/gcc-5/libstdc++6_5.4.0-6ubuntu1~16.04.9_amd64.deb
   - mkdir ./libc
-  - dpkg-deb -x ./libstdc++6_5.4.0-6ubuntu1~16.04.4_amd64.deb ./libc
+  - dpkg-deb -x ./libstdc++6_5.4.0-6ubuntu1~16.04.9_amd64.deb ./libc
   - export LD_LIBRARY_PATH=`pwd`/libc/usr/lib/x86_64-linux-gnu/
   - wget http://releases.llvm.org/4.0.1/clang+llvm-4.0.1-x86_64-linux-gnu-debian8.tar.xz
   - tar -xf ./clang+llvm-4.0.1-x86_64-linux-gnu-debian8.tar.xz