diff --git a/images/datascience-notebook/Dockerfile b/images/datascience-notebook/Dockerfile
index f3499e17..c35b0eac 100644
--- a/images/datascience-notebook/Dockerfile
+++ b/images/datascience-notebook/Dockerfile
@@ -113,5 +113,6 @@ RUN conda clean -t -p -i -y
 # https://web.archive.org/web/20240404213219/https://groups.google.com/a/anaconda.com/g/anaconda/c/xV1BiGPmgao
 USER root
 RUN rm -rf /opt/conda/pkgs/
+USER jovyan
 
 WORKDIR /home/jovyan
diff --git a/images/scipy-ml-notebook/Dockerfile b/images/scipy-ml-notebook/Dockerfile
index 265f0702..47c6de15 100644
--- a/images/scipy-ml-notebook/Dockerfile
+++ b/images/scipy-ml-notebook/Dockerfile
@@ -112,5 +112,11 @@ RUN mkdir -p $CONDA_DIR/lib/nvvm/libdevice && \
 RUN ln -s /opt/conda/lib/python3.11/site-packages/tensorrt_libs/libnvinfer_plugin.so.8 /opt/conda/lib/python3.11/site-packages/tensorrt_libs/libnvinfer_plugin.so.$TENSORRT_VERSION && \
     ln -s /opt/conda/lib/python3.11/site-packages/tensorrt_libs/libnvinfer.so.8 /opt/conda/lib/python3.11/site-packages/tensorrt_libs/libnvinfer.so.$TENSORRT_VERSION
 
+# Remove conda pkg cache (currently saves ~7GB)
+# https://web.archive.org/web/20240404213219/https://groups.google.com/a/anaconda.com/g/anaconda/c/xV1BiGPmgao
+USER root
+RUN rm -rf /opt/conda/pkgs/
+USER jovyan
+
 # Run datahub scripts
 RUN . /tmp/activate.sh