diff --git a/.travis.yml b/.travis.yml
index fa00025a2..039248421 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -49,6 +49,7 @@ install:
     - ./travis-install-libsodium.sh
     - export PKG_CONFIG_PATH=$HOME/libsodium/lib/pkgconfig:$PKG_CONFIG_PATH
     - export LD_LIBRARY_PATH=$HOME/libsodium/lib:$LD_LIBRARY_PATH
+    - pipenv run pip install pip==18.0
     - pipenv install
 
 before_script: