diff --git a/docker/py-dsci-100-grading/Dockerfile b/docker/py-dsci-100-grading/Dockerfile
index c027959..d01a269 100644
--- a/docker/py-dsci-100-grading/Dockerfile
+++ b/docker/py-dsci-100-grading/Dockerfile
@@ -2,11 +2,8 @@
 # Distributed under the terms of the Modified BSD License.
 FROM ubcdsci/py-dsci-100:latest
 
-# install the rise slides extension
-RUN pip install jupyterlab-rise 
-
-# install nbgrader
-RUN pip install "git+https://github.com/jupyter/nbgrader.git"
+# install nbgrader and the rise slides extension
+RUN pip install jupyterlab-rise nbgrader
 
 # Clean the cache
 RUN mamba clean --all -f -y 
diff --git a/docker/r-dsci-100-grading/Dockerfile b/docker/r-dsci-100-grading/Dockerfile
index 2356f75..31599b9 100644
--- a/docker/r-dsci-100-grading/Dockerfile
+++ b/docker/r-dsci-100-grading/Dockerfile
@@ -2,11 +2,8 @@
 # Distributed under the terms of the Modified BSD License.
 FROM ubcdsci/r-dsci-100:latest
 
-# install the rise slides extension
-RUN pip install jupyterlab-rise 
-
-# install nbgrader
-RUN pip install "git+https://github.com/jupyter/nbgrader.git"
+# install nbgrader and the rise slides extension
+RUN pip install jupyterlab-rise nbgrader
 
 # Clean the cache
 RUN mamba clean --all -f -y