diff --git a/contrib/deploy-swh-stack-on-swh-worker.sh b/contrib/deploy-swh-stack-on-swh-worker.sh
index bc31b32..d220a1c 100755
--- a/contrib/deploy-swh-stack-on-swh-worker.sh
+++ b/contrib/deploy-swh-stack-on-swh-worker.sh
@@ -1,20 +1,21 @@
 #!/usr/bin/env bash
 
 # script to run as root
 
 apt-get install -y python3 \
         python3-pip \
         ipython3 \
         python3-psycopg2 \
         python3-nose \
         python3-celery \
         ntpdate \
+        htop \
         celeryd
 
 # beware no python3-pygit2 in stable
 # (but it's now out of scope for the cloner since we use
 # subprocess so out)
 # apt-get install -y python3-pygit2
 #         libgit2-dev \
 #         libffi-dev \
 #         python3-cffi