diff --git a/12.0.Dockerfile b/12.0.Dockerfile
index d3d509d12621ae095ae1693eac474d91e283e259..c735989043024b5f88411d73aa47805062ac6f9f 100644
--- a/12.0.Dockerfile
+++ b/12.0.Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:stretch
+FROM debian:stretch-slim
 MAINTAINER Le Filament <https://le-filament.com>
 
 ENV APT_DEPS='build-essential libldap2-dev libsasl2-dev python3-dev python3-wheel' \