diff --git a/.travis.yml b/.travis.yml
index 7387b78..c282606 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,10 +1,10 @@
-language: csharp  
+language: csharp
 
 # dotnet cli require Ubuntu 14.04
 sudo: required
 #dist: xenial
 
-os: 
+os:
   - linux
 
 # dotnet cli require OSX 10.10
@@ -16,7 +16,7 @@ os:
 #    - nuget
 #    - mono-complete
 
-#language: csharp
+language: csharp
 #solution: TweetNaCl.sln
 
 mono:
@@ -24,9 +24,8 @@ mono:
 
 install:
   - nuget restore src/TweetNaCl.sln
-  - nuget install NUnit.Runners -Version 2.6.4
+  - nuget install NUnit.Runners -Version 3.0.1 -OutputDirectory testrunner
 
 script:
   - xbuild /p:Configuration=Release ./src/TweetNaCl.sln
-  - mono src/packages/NUnit.Runners.2.6.2/tools/nunit-console.exe src/TweetNaCl.Tests/bin/Release/TweetNaCl.Tests.dll
-
+  - mono ./testrunner/NUnit.Console.3.0.1/tools/nunit3-console.exe src/TweetNaCl.Tests/bin/Release/TweetNaCl.Tests.dll