diff --git a/3.0-custom/Dockerfile b/3.0-custom/Dockerfile
index ab2f6a2..73856d9 100644
--- a/3.0-custom/Dockerfile
+++ b/3.0-custom/Dockerfile
@@ -53,7 +53,9 @@ RUN apt-get update \
 		mcrypt \
 		mysqli \
 		soap \
-		zip
+		zip \
+    && apt-get upgrade \
+    && rm -rf /var/cache/apt
 
 # Load iTop files
 RUN curl -L -o /tmp/iTop.zip https://sourceforge.net/projects/itop/files/itop/${release}/iTop-${release}-${patch}.zip \