diff --git a/.travis.yml b/.travis.yml
index aa78b6f69d..8bbeaef3f2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,8 +14,7 @@ env:
   global:
     - DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
     - DOTNET_CLI_TELEMETRY_OPTOUT: 1
-mono:
-  - 4.0.5
+mono: none
 os:
   - linux
   - osx