diff --git a/.travis.yml b/.travis.yml
index de68d1e0..c94aaccc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ language: csharp
 solution: Avalara.AvaTax.netstandard11.sln
 dist: trusty
 sudo: required
-dotnet: 2.0.4
+dotnet: 1.1.5
 mono: latest
 install:
   - sudo apt-get install -y gtk-sharp2