diff --git a/Dockerfile b/Dockerfile
index a769ab97..41b7fc8a 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,10 +1,4 @@
-FROM debian:testing-slim
-
-RUN apt-get update && apt-get install -y autoconf automake gcc clang \
-  libtool libtool-bin make pkg-config libcunit1-dev libssl-dev \
-  exuberant-ctags
-RUN apt-get install -y graphviz doxygen libxml2-utils xsltproc
-RUN apt-get install -y docbook-xml docbook-xsl asciidoc-base
+FROM obgm/libcoap:build-env
 
 ENV libcoap_dir=/libcoap
 ADD . $libcoap_dir