Update CMake to 3.1.1 in .travis.yml

diff --git a/.travis.yml b/.travis.yml
index b226769..8600155 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,7 +20,7 @@ matrix:
  fast_finish: true
 
 env:
- - CMAKE_VERSION=3.1.0 SDL2_VERSION=2.0.3 SDL2IMAGE_VERSION=2.0.0
+ - CMAKE_VERSION=3.1.1 SDL2_VERSION=2.0.3 SDL2IMAGE_VERSION=2.0.0
  
 before_install:
  - sudo apt-get update -qq