diff --git a/Dockerfile b/Dockerfile
index 46dc4a6..b5dad5d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -220,7 +220,7 @@ ARG SHBLOG=logs/shib-idp
 ## ADD ${SHBMD} /opt/shibboleth-idp/metadata
 
 # Expose the port tomcat will be serving on
-EXPOSE 8443
+EXPOSE 443
 
 #establish a healthcheck command so that docker might know the container's true state
 HEALTHCHECK --interval=2m --timeout=30s \