diff --git a/environment.yml b/environment.yml
index 94956ff..8a7b1c5 100644
--- a/environment.yml
+++ b/environment.yml
@@ -30,22 +30,23 @@ dependencies:
 
   - pip:
     # Infrastructure things
-    - jupyterlab==2.*
-    - voila==0.2.3
-    - nbgitpuller==0.9.*
+    - jupyterlab==3.*
+    - retrolab==0.3.*
+    - voila==0.3.*
+    - nbgitpuller==1.0.*
     - jupyter-resource-usage==0.5.1
-    - jupytext==1.6.*
+    - jupytext==1.13.*
     - RISE==5.6.1
     - jupyter_contrib_nbextensions==0.5.1
     - jupyter-desktop-server==0.1.3
     - git-credential-helpers==0.2
     - notebook==6.1.6
-    - jupyterhub==1.3.0
-    - jupyter-server-proxy==3.1.0
+    - jupyterhub==1.5.0
+    - jupyter-server-proxy==3.2.0
     - jupyter-rsession-proxy==1.4
     - jupyter-shiny-proxy==1.1
     - jupyter-tree-download==1.0.1
-    - ipywidgets==7.6.2
+    - ipywidgets==7.6.5
     # This is temporary (ref: https://github.com/utoronto-2i2c/jupyterhub-deploy/issues/77)
     - jedi==0.17.2
 
diff --git a/install-jupyter-extensions.bash b/install-jupyter-extensions.bash
index ab98fec..341d695 100755
--- a/install-jupyter-extensions.bash
+++ b/install-jupyter-extensions.bash
@@ -1,12 +1,7 @@
 #!/bin/bash
 set -euo pipefail
 
-jupyter labextension install --debug \
-    @jupyter-widgets/jupyterlab-manager@2 \
-    @jupyterlab/server-proxy@2.1.1 \
-    jupyterlab-jupytext@1.2.1 \
-    jupyter-matplotlib@0.7.4 \
-    qgrid2@1.1.3
+jupyter labextension install --debug qgrid2@1.1.3
 
 # Install jupyter-contrib-nbextensions
 jupyter contrib nbextension install --sys-prefix