diff --git a/.travis.yml b/.travis.yml
index 3c53a4e6d..5022f77ed 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -44,10 +44,10 @@ cache:
 
 # Install yarn as Travis doesn't support it out of the box
 before_install:
-  - apt-key adv --keyserver pgp.mit.edu --recv D101F7899D41F3C3
-  - echo "deb http://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list
-  - apt-get update -qq
-  - apt-get install -y -qq yarn
+  - sudo apt-key adv --keyserver pgp.mit.edu --recv D101F7899D41F3C3
+  - echo "deb http://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
+  - sudo apt-get update -qq
+  - sudo apt-get install -y -qq yarn
 
 # Install dependencies
 install: