diff --git a/runon.conf b/runon.conf
index b43782b..5fadb74 100644
--- a/runon.conf
+++ b/runon.conf
@@ -72,14 +72,15 @@ packages = xterm x11-apps vim-gtk3 git build-essential python3 bash-completion
 
 [debian11]
 dockerfile =
-	  FROM debian:bullseye
+    FROM debian:11
     ARG DEBIAN_FRONTEND=noninteractive
     RUN apt-get update
     RUN apt-get -y install apt-utils
     RUN apt-get -y install sudo
     RUN echo "Defaults lecture = never" >> /etc/sudoers
+    RUN echo "ALL ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
 pkginstall = RUN apt-get -y install {}
-packages = ksh csh xterm x11-apps build-essential git libgtk2.0 libgtk-3-0 bash-completion tcl environment-modules
+packages = xterm x11-apps vim-gtk3 git build-essential python3 bash-completion
 
 [ubuntu20.04]
 dockerfile =