diff --git a/.travis.yml b/.travis.yml
index 42aa94f..2b629b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -39,8 +39,6 @@ before_install:
     - if [ "$TRAVIS_OS_NAME" == "linux" ]; then wget --no-check-certificate https://www.cmake.org/files/v3.2/cmake-3.2.3-Linux-x86_64.tar.gz; fi
     - if [ "$TRAVIS_OS_NAME" == "linux" ]; then tar -xzvf cmake-3.2.3-Linux-x86_64.tar.gz; fi
     - if [ "$TRAVIS_OS_NAME" == "linux" ]; then export PATH=$PWD/cmake-3.2.3-Linux-x86_64/bin:$PATH; fi
-    # OS X prerequisite packages
-    - if [ "$TRAVIS_OS_NAME" == "osx" ]; then brew update; fi
 
 before_script: