diff --git a/.travis.yml b/.travis.yml
index 52db646..2b2ca7b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,9 +9,9 @@ before_install:
   - curl -sLO https://raw.githubusercontent.com/Homebrew/install/master/uninstall
   - chmod +x ./uninstall
   - ./uninstall --force
-  - rm -rf /usr/local/Homebrew
-  - rm -rf /usr/local/Caskroom
-  - rm -rf /usr/local/bin/brew
+  - sudo rm -rf /usr/local/Homebrew
+  - sudo rm -rf /usr/local/Caskroom
+  - sudo rm -rf /usr/local/bin/brew
 
 install:
   # Install pip.