diff --git a/.travis.yml b/.travis.yml
index fd9099ce..d6417ce3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -17,7 +17,7 @@ matrix:
           sources:
             - ubuntu-toolchain-r-test
           packages:
-            - g++-6 zlib1g libcrypto++6 libcrypto++-dbg libcrypto++-dev
+            - g++-6 zlib1g libcrypto++9 libcrypto++9-dbg libcrypto++-dev
       env:
         - COMPILER=g++-6
         - COVERAGE=OFF