diff --git a/pytorch-gpu/Dockerfile b/pytorch-gpu/Dockerfile
index af08a05b0d7efe2e14921ec8f35607ed5b3d9180..1777631685d12d5ff66d242200bf681b3b692186 100644
--- a/pytorch-gpu/Dockerfile
+++ b/pytorch-gpu/Dockerfile
@@ -41,9 +41,8 @@ RUN wget --no-hsts -q -O vscode_cli.tar.gz 'https://code.visualstudio.com/sha/do
     fix-permissions "${CONDA_DIR}"
 
 # install some packages
-# NOTE: without --no-update-deps somehow an undefined symbol error in /opt/conda/lib/python3.11/lib-dynload/_sqlite3.cpython-311-x86_64-linux-gnu.so occurs, which crashes jupyter lab.
 USER ${NB_UID}
-RUN conda install --yes --no-update-deps \
+RUN mamba install --yes \
     # system monitor
     'bpytop' \
     # umap + hdbscan