diff --git a/README.md b/README.md
index 37b2952..bf76973 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # CCPBioSim OpenForcefield Workshop
 
 [![ci](https://github.com/ccpbiosim/openff-workshop/actions/workflows/build.yaml/badge.svg?branch=main)](https://github.com/ccpbiosim/openff-workshop/actions/workflows/build.yaml)
-[![latest](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fccpbiosim.github.io%2Fworkshop.json&query=%24.containers.openff-workshop.latest&labelColor=grey&logo=github&logoColor=white&label=latest&color=purple)](https://github.com/ccpbiosim/openff-workshop/pkgs/container/openff-workshop) 
+[![latest](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fccpbiosim.github.io%2Fassets.json&query=%24.containers.openff-workshop.latest&labelColor=grey&logo=github&logoColor=white&label=latest&color=purple)](https://github.com/ccpbiosim/openff-workshop/pkgs/container/openff-workshop) 
 [![issues](https://img.shields.io/github/issues/ccpbiosim/openff-workshop?logo=github&labelColor=grey)](https://github.com/CCPBioSim/openff-workshop/issues)
 [![pr](https://img.shields.io/github/issues-pr/ccpbiosim/openff-workshop?logo=github&labelColor=grey)](https://github.com/CCPBioSim/openff-workshop/pulls)
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 7e2bb6e..8b06ffd 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -9,11 +9,10 @@ USER $NB_USER
 WORKDIR $HOME
 
 # Install workshop deps
-RUN conda install -y -c conda-forge \
-    conda-forge::openff-toolkit-examples=0.19.0 \
-    conda-forge::openff-interchange=0.5.4 \
-    conda-forge::packmol=21.2.1 \
-    conda-forge::ambertools=26.0 \
+RUN mamba install -y -c conda-forge \
+    conda-forge::openff-toolkit-examples>=0.19.0 \
+    conda-forge::openff-interchange>=0.5.4 \
+    conda-forge::ambertools>=26.3 \
     conda-forge::MDAnalysis=2.10.0 \
     conda-forge::prolif=2.2.1 \
     conda-forge::py3dmol=2.5.4 \
@@ -29,6 +28,5 @@ RUN rm -rf .gitignore .pre-commit-config.yaml environment.yaml LICENSE Makefile
 # Copy updated lab workspace
 #COPY --chown=1000:100 docker/default-37a8.jupyterlab-workspace /home/jovyan/.jupyter/lab/workspaces/default-37a8.jupyterlab-workspace
 
-
 # Always finish with non-root user as a precaution.
 USER $NB_USER