diff --git a/docker/Dockerfile b/docker/Dockerfile
index 3ebe6a1..c10c2ef 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -12,7 +12,7 @@ USER $NB_USER
 WORKDIR $HOME
 
 # Install workshop deps
-RUN conda install matplotlib numpy ipywidgets -y
+RUN mamba install matplotlib numpy ipywidgets -y
 RUN pip install mdtraj
 
 COPY --chown=1000:100 . .