diff --git a/Dockerfile b/Dockerfile
index 75f8632..18be466 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,6 +10,7 @@ ENV TOMCAT_VERSION=9.0.19
 
 ENV CATALINA_HOME=c:\\Tomcat
 ENV IDP_VERSION=3.4.3
+ENV TIERVERSION=20190401
 ###
 #ENV JAVA_INSTALL_CLI_STRING=INSTALLDIR=c:\\Java\\$JAVA_INSTALL_FOLDER
 #below is for Zulu Java