diff --git a/.travis.yml b/.travis.yml
index c0f2280..acac01e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -44,11 +44,15 @@ matrix:
       env:
         BUILD_TYPE=Release
         BIN_DIR=bin
+      install:
+        brew install cmake
     - os: osx
       osx_image: xcode8
       env:
         BUILD_TYPE=Debug
         BIN_DIR=debug
+      install:
+        brew install cmake
 script:
     - cd build
     - cmake -DCMAKE_BUILD_TYPE=$BUILD_TYPE ..