diff --git a/.gitignore b/.gitignore
index e6d6736..d5cf8e3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 __pycache__
 poetry.lock
 resources/images/Colour_Wheel.exr
+.venv
diff --git a/Dockerfile b/Dockerfile
index 0c6a223..3924826 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,14 +1,15 @@
 FROM python:3.7
 
-RUN curl -sL https://deb.nodesource.com/setup_13.x | bash - \
+RUN curl -sL https://deb.nodesource.com/setup_14.x | bash - \
     && apt-get install -y nodejs
 
 WORKDIR /tmp
 COPY ./requirements.txt /tmp
+RUN python -m pip install --upgrade pip
 RUN pip install -r requirements.txt \
     && rm /tmp/requirements.txt \
     && python -c "import imageio;imageio.plugins.freeimage.download()" \
-    && jupyter labextension install @jupyter-widgets/jupyterlab-manager jupyter-matplotlib
+    && jupyter labextension install @jupyter-widgets/jupyterlab-manager jupyter-matplotlib@0.7.3
 
 RUN mkdir -p /home/colour-science/gamut-mapping-ramblings
 WORKDIR /home/colour-science/gamut-mapping-ramblings
diff --git a/requirements.txt b/requirements.txt
index a676b17..63b5793 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,6 +4,7 @@ backcall==0.1.0
 bleach==3.1.5
 certifi==2020.4.5.1
 chardet==3.0.4
+colour-science==0.3.16
 cycler==0.10.0
 decorator==4.4.2
 defusedxml==0.6.0
@@ -12,7 +13,7 @@ idna==2.9
 imageio==2.8.0
 importlib-metadata==1.6.0
 ipykernel==5.2.1
-ipympl==0.5.6
+ipympl==0.5.7
 ipynb==0.5.1
 ipython==7.9.0
 ipython-genutils==0.2.0
@@ -29,7 +30,7 @@ jupyterlab==2.1.2
 jupyterlab-server==1.1.3
 kiwisolver==1.1.0
 MarkupSafe==1.1.1
-matplotlib==3.0.3
+matplotlib==3.2
 mistune==0.8.4
 nbconvert==5.6.1
 nbformat==5.0.6
@@ -64,4 +65,3 @@ wcwidth==0.1.9
 webencodings==0.5.1
 widgetsnbextension==3.5.1
 zipp==1.2.0
--e git+https://github.com/colour-science/colour.git@3bebd7e903cbcbee959f56786c020335a1b06cf7#egg=colour