diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index 4320e93b0..cd11c043b 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -22,7 +22,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install -y build-essential libeigen3-dev libyaml-dev libfftw3-dev libavcodec-dev libavformat-dev libavutil-dev libswresample-dev libsamplerate0-dev libtag1-dev libchromaprint-dev python3-dev python3-numpy-dev python3-numpy python3-yaml python3-six
           sudo apt-get install -y doxygen python3-pip pandoc
-          pip3 install sphinx pyparsing sphinxcontrib-doxylink docutils jupyter sphinx-toolbox nbformat gitpython
+          pip3 install sphinx pyparsing sphinxcontrib-doxylink docutils jupyter sphinx-toolbox nbformat gitpython sphinx-copybutton
           # Install TensorFlow
           sudo sh src/3rdparty/tensorflow/setup_from_libtensorflow.sh
           # Install Gaia dependencies