diff --git a/templates/Angular2Spa/Dockerfile b/templates/Angular2Spa/Dockerfile
index b828f9684e..cfa19f0b43 100644
--- a/templates/Angular2Spa/Dockerfile
+++ b/templates/Angular2Spa/Dockerfile
@@ -1,4 +1,4 @@
-FROM microsoft/dotnet:latest
+FROM microsoft/dotnet:1.0.0-preview2-onbuild
 
 RUN apt-get update
 RUN apt-get install -y build-essential nodejs nodejs-legacy