diff --git a/grml_build/Dockerfile b/grml_build/Dockerfile
index 737c3c8..2c3b0d0 100644
--- a/grml_build/Dockerfile
+++ b/grml_build/Dockerfile
@@ -5,7 +5,7 @@ FROM docker.mgm.sipwise.com/sipwise-buster:latest
 # is updated with the current date. It will force refresh of all
 # of the base images and things like `apt-get update` won't be using
 # old cached versions when the Dockerfile is built.
-ENV REFRESHED_AT 2019-06-18
+ENV REFRESHED_AT 2019-07-01
 
 RUN apt-get update && apt-get install --assume-yes \
   bc \
@@ -41,7 +41,8 @@ RUN git clone https://github.com/grml/grml-live
 WORKDIR /code/grml-live
 
 RUN mkdir -p /code/grml-live/etc/grml/fai/config/files/etc/apt/sources.list.d/sipwise.list/ \
-  /code/grml-live/etc/grml/fai/config/files/etc/apt/trusted.gpg.d/sipwise-keyring.gpg/
+  /code/grml-live/etc/grml/fai/config/files/etc/apt/trusted.gpg.d/sipwise-keyring.gpg/ \
+  /code/grml-live/etc/grml/fai/config/files/root/puppet.gpg/
 
 ### Usage instructions #############################################################################
 ## Build docker image: