diff --git a/.htmd/.registered-htmd/registration b/.htmd/.registered-htmd/registration
new file mode 100644
index 0000000..cba659d
--- /dev/null
+++ b/.htmd/.registered-htmd/registration
@@ -0,0 +1 @@
+{"name":"test","email":"test@test.com","institution":"test","city":"test","country":"test","product":"htmd","code":375364522}
diff --git a/README.md b/README.md
index 18b8654..20ae35d 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,7 @@
 # CCPBioSim DNA Workshop
 
 [![ci](https://github.com/ccpbiosim/dna-workshop/actions/workflows/build.yaml/badge.svg?branch=main)](https://github.com/ccpbiosim/dna-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.dna-workshop.latest&labelColor=grey&logo=github&logoColor=white&label=latest&color=purple)](https://github.com/ccpbiosim/dna-workshop/pkgs/container/dna-workshop)
+[![latest](https://img.shields.io/badge/dynamic/json?url=https%3A%2F%2Fccpbiosim.github.io%2Fassets.json&query=%24.containers.dna-workshop.latest&labelColor=grey&logo=github&logoColor=white&label=latest&color=purple)](https://github.com/ccpbiosim/dna-workshop/pkgs/container/dna-workshop)
 [![issues](https://img.shields.io/github/issues/ccpbiosim/dna-workshop?logo=github&labelColor=grey)](https://github.com/CCPBioSim/dna-workshop/issues)
 [![pr](https://img.shields.io/github/issues-pr/ccpbiosim/dna-workshop?logo=github&labelColor=grey)](https://github.com/CCPBioSim/dna-workshop/pulls)
 
diff --git a/docker/Dockerfile b/docker/Dockerfile
index ec8c937..55bfc6a 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -9,7 +9,14 @@ USER $NB_USER
 WORKDIR $HOME
 
 # Install workshop deps
-RUN conda install -c acellera -c conda-forge ambertools htmd=2.5.7 matplotlib mdtraj nglview numpy=2.3.5 -y
+RUN conda install -y -c conda-forge -c acellera \
+    conda-forge::matplotlib=3.11.2 \
+    conda-forge::mdtraj=1.11.1 \
+    conda-forge::numpy=2.4.6 \
+    conda-forge::ambertools=24.8 \
+    conda-forge::nglview=4.0.1 \
+    conda-forge::ipywidgets=8.1.9 \
+    acellera::htmd
 
 COPY docker/fix-nglview.sh /tmp/fix-nglview.sh
 RUN bash /tmp/fix-nglview.sh
@@ -18,7 +25,7 @@ RUN bash /tmp/fix-nglview.sh
 COPY --chown=1000:100 . .
 RUN rm -rf requirements.txt LICENSE README.md docker .git .github tested_files
 
-RUN wget https://www.hecbiosim.ac.uk/file-store/tw2025-dna-workshop/01_Prod-0.nc && \
+RUN wget https://file-store.ccpbiosim.org/tw2025-dna-workshop/01_Prod-0.nc && \
     mv 01_Prod-0.nc data/
 
 # Copy updated lab workspace