diff --git a/Dockerfile b/Dockerfile
index 5fb9cd18b306d073a516b6f8af323136f9693675..7d212cef1d3259f731b91bec507a1ea699787210 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM markrobinsonuzh/renku:r4.0.0_bioc_renku
+FROM markrobinsonuzh/renku:r4.0.0-ubuntu18.04_bioc_renku
 
 # FROM rrrrrok/renkulab:bioc-devel
 # FROM rockerdev/rstudio:4.0.0
@@ -28,18 +28,11 @@ RUN apt-get install -y --no-install-recommends \
       nano \
       libgit2-dev \
       manpages \
-      #man-db \
+      man-db \
       #python3.6 \
       #libpng-dev \
       less
       
-      
-RUN export DEBIAN_FRONTEND=noninteractive
-      
-RUN yes | unminimize && \
-    apt-get install -y man-db && \
-    rm -r /var/lib/apt/lists/*      
-
 USER ${NB_USER}
 
 # install the R dependencies