diff --git a/travis-linux b/travis-linux
index bcc26cf..47f1940 100755
--- a/travis-linux
+++ b/travis-linux
@@ -1,4 +1,7 @@
 #!/bin/bash
 set -euo pipefail
 
+sudo apt-get install software-properties-common
+sudo add-apt-repository ppa:george-edison55/cmake-3.x
+sudo apt-get update
 PREBUILT=1 ./make-linux