diff --git a/.travis.yml b/.travis.yml
index f62f9896..7f87ae83 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,8 +14,6 @@ env:
   global:
     - DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
     - DOTNET_CLI_TELEMETRY_OPTOUT: 1
-    - KOREBUILD_DOTNET_VERSION: 2.0.0-preview1-005418
-    - KOREBUILD_DOTNET_SHARED_RUNTIME_VERSION: 2.0.0-preview1-001919-00
 mono: none
 os:
   - linux