diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a5e7da47c8..255ce63308 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -255,7 +255,6 @@ jobs:
           cd ../bsdd && make test || ERROR=1
           pip install deepdiff
           cd ../ifcdiff && make test || ERROR=1
-          pip install toposort igraph
           cd ../ifcpatch && make test || ERROR=1
           pip install -e ../ifc5d --no-deps
           pip install odfpy xlsxwriter