diff --git a/Dockerfile.3.gromacs b/Dockerfile.3.gromacs
index 3b703ed..3c867c0 100644
--- a/Dockerfile.3.gromacs
+++ b/Dockerfile.3.gromacs
@@ -248,6 +248,10 @@ ENV MODULEPATH=/opt/modulefiles/boost:$MODULEPATH
 
 # Set working directory
 WORKDIR /root
+RUN <<EOT
+#!/bin/bash
+apt update && apt install -y --no-install-recommends openssh-client openssh-server 
+EOT
 
 # Start SSH service by default
 CMD ["/usr/sbin/sshd", "-D"]