diff --git a/hub-templates/basehub/values.yaml b/hub-templates/basehub/values.yaml
index 02d3634ce0..9c39b2da9b 100644
--- a/hub-templates/basehub/values.yaml
+++ b/hub-templates/basehub/values.yaml
@@ -106,7 +106,7 @@ jupyterhub:
       hub.jupyter.org/node-purpose: user
     image:
       name: set_automatically_by_automation
-      tag: 524cf58
+      tag: 0d5aa48
     storage:
       type: static
       static:
diff --git a/images/user/Dockerfile b/images/user/Dockerfile
index 231e8d9381..fcf766700a 100644
--- a/images/user/Dockerfile
+++ b/images/user/Dockerfile
@@ -120,12 +120,9 @@ RUN sed -i -e '/^R_LIBS_USER=/s/^/#/' /etc/R/Renviron && \
 
 USER ${NB_USER}
 
-COPY environment.yml /tmp/
+COPY requirements.txt /tmp/
 
-RUN conda env update -p ${CONDA_DIR} -f /tmp/environment.yml
-
-COPY install-jupyter-extensions.bash /tmp/install-jupyter-extensions.bash
-RUN /tmp/install-jupyter-extensions.bash
+RUN python3 -m pip install -r /tmp/requirements.txt
 
 # Set CRAN mirror to rspm before we install anything
 COPY Rprofile.site /usr/lib/R/etc/Rprofile.site
diff --git a/images/user/environment.yml b/images/user/environment.yml
deleted file mode 100644
index 1c152837d6..0000000000
--- a/images/user/environment.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-channels:
-  - conda-forge
-dependencies:
-
-  # language runtimes
-  - python=3.8.*
-
-  - numpy
-  - scipy
-  - matplotlib
-  - pandas
-  - seaborn
-  - sympy
-  - networkx
-  - scikit-learn
-  - beautifulsoup4
-  - statsmodels
-  - nltk
-  - spacy
-  - geopandas
-  # From https://github.com/utoronto-2i2c/jupyterhub-deploy/issues/29
-  - astroquery
-  - astropy
-  - galpy
-  - catalystcoop.pudl
-  - dask==2020.12.0
-  - distributed==2020.12.0
-  - dask-gateway==0.9.0
-
-  - pip
-
-  - pip:
-    # Infrastructure things
-    - jupyterlab==2.*
-    - voila==0.1.23
-    - nbgitpuller==0.9.*
-    - jupyter-resource-usage==0.5.0
-    - jupytext==1.6.*
-    - RISE==5.6.1
-    - jupyter_contrib_nbextensions==0.5.1
-    - notebook==6.1.4
-    - jupyterhub==1.1.0
-    - jupyter-server-proxy==1.5.0
-    - jupyter-rsession-proxy==1.2
-    - jupyter-tree-download==1.0.1
-    - ipywidgets==7.5.1
-    - otter-grader==2.1.7
-
-    - datascience
-    - geojson
-    - folium
-    - geopy
diff --git a/images/user/install-jupyter-extensions.bash b/images/user/install-jupyter-extensions.bash
deleted file mode 100755
index e6c69cf88b..0000000000
--- a/images/user/install-jupyter-extensions.bash
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/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
-
-# Install jupyter-contrib-nbextensions
-jupyter contrib nbextension install --sys-prefix --symlink
diff --git a/images/user/requirements.txt b/images/user/requirements.txt
new file mode 100644
index 0000000000..1a794d5637
--- /dev/null
+++ b/images/user/requirements.txt
@@ -0,0 +1,42 @@
+numpy
+scipy
+matplotlib
+pandas
+seaborn
+sympy
+networkx
+scikit-learn
+beautifulsoup4
+statsmodels
+nltk
+spacy
+geopandas
+# From https://github.com/utoronto-2i2c/jupyterhub-deploy/issues/29
+astroquery
+astropy
+galpy
+catalystcoop.pudl
+dask==2020.12.0
+distributed==2020.12.0
+dask-gateway==0.9.0
+# Infrastructure things
+jupyterlab==3.*
+voila==0.2.6
+nbgitpuller==0.9.*
+jupyter-resource-usage==0.5.0
+RISE==5.7.1
+jupyter_contrib_nbextensions==0.5.1
+notebook==6.1.4
+jupyterhub==1.3.0
+jupyter-rsession-proxy==1.2
+jupyter-tree-download==1.0.1
+ipywidgets==7.5.1
+otter-grader==2.1.7
+datascience
+geojson
+folium
+geopy
+# JupyterLab extensions
+jupyterlab_widgets==1.0.*
+jupytext==1.10.*
+jupyter-server-proxy==3.0.2