diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9b039f4a04..fef4a28867 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -257,6 +257,7 @@ jobs:
           cd ../ifcdiff && make test || ERROR=1
           cd ../ifcpatch && make test || ERROR=1
           pip install -e ../ifc5d --no-deps
+          pip install odfpy
           cd ../ifc5d && make test || ERROR=1
           pip install -e ../ifcquery --no-deps
           cd ../ifcquery && make test || ERROR=1