diff --git a/.travis/install.sh b/.travis/install.sh
index 15b0e5f5..f4ae271d 100755
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -8,7 +8,7 @@ if [[ "$(uname -s)" == 'Linux' ]]; then
     sudo pip install virtualenv
 else
     brew update
-    brew install gettext libssh
+    brew install gettext libssh md5sha1sum
     brew install pyenv-virtualenv
     # By default it already has cmake 3.6.2
 fi