diff --git a/demo/complex/midpoint_server/Dockerfile b/demo/complex/midpoint_server/Dockerfile
index 49e5fb4..43dac56 100644
--- a/demo/complex/midpoint_server/Dockerfile
+++ b/demo/complex/midpoint_server/Dockerfile
@@ -1,7 +1,9 @@
-FROM tier/midpoint
+FROM tier/midpoint:laboratory
 
 MAINTAINER info@evolveum.com
 
 ENV MP_DIR /opt/midpoint
 
+VOLUME ${MP_DIR}/var
+
 COPY container_files/mp-home/ ${MP_DIR}/var/
diff --git a/demo/complex2/midpoint_server/Dockerfile b/demo/complex2/midpoint_server/Dockerfile
index 49e5fb4..43dac56 100644
--- a/demo/complex2/midpoint_server/Dockerfile
+++ b/demo/complex2/midpoint_server/Dockerfile
@@ -1,7 +1,9 @@
-FROM tier/midpoint
+FROM tier/midpoint:laboratory
 
 MAINTAINER info@evolveum.com
 
 ENV MP_DIR /opt/midpoint
 
+VOLUME ${MP_DIR}/var
+
 COPY container_files/mp-home/ ${MP_DIR}/var/