diff --git a/Dockerfile b/Dockerfile
index 0b50a995..120e3f7f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG BASE_TAG=latest
+ARG BASE_TAG=dm-56144-d_2026_09_23
 FROM ghcr.io/lsst-dm/prompt-base:${BASE_TAG}
 ENV PYTHONUNBUFFERED=True
 ENV APP_HOME=/app
@@ -22,6 +22,7 @@ RUN groupadd -g 4085 -o rubin_users \
     # Ensure that the target directories and files created by this Dockerfile are owned by lsstsvc1
     && chown -R lsstsvc1:rubin_users $APP_HOME
 USER lsstsvc1
+
 # Create /home/lsstsvc1/.eups directory in the container
 RUN source /opt/lsst/software/stack/loadLSST.bash \
     && setup lsst_distrib
diff --git a/base/Dockerfile b/base/Dockerfile
index 025f6d05..0c6b7f18 100644
--- a/base/Dockerfile
+++ b/base/Dockerfile
@@ -6,8 +6,9 @@ RUN <<EOT
   set -ex
   source /opt/lsst/software/stack/loadLSST.bash
   # Needed only for Knative support
-  conda install -y flask
+  conda install -y flask gdb
   pip install --no-input cloudevents
+  pip install --no-input memray
   pip install --no-input prometheus-client
   pip install --no-input redis
 EOT