diff --git a/.github/build.sh b/.github/build.sh
index 0fafba1..4cf5871 100755
--- a/.github/build.sh
+++ b/.github/build.sh
@@ -29,6 +29,7 @@ case "$1" in
     ubuntu)
         # full documentation is only built on ubuntu
         pip install -U sphinx sphinx-bootstrap-theme breathe sphinxcontrib-programoutput
+        python -m pip freeze
         ;;
 esac