diff --git a/.github/scripts/unittest.sh b/.github/scripts/unittest.sh
index bb2ad73715a..7f2b2100389 100755
--- a/.github/scripts/unittest.sh
+++ b/.github/scripts/unittest.sh
@@ -8,7 +8,7 @@ set -euo pipefail
 eval "$($(which conda) shell.bash hook)" && conda deactivate && conda activate ci
 
 echo '::group::Install testing utilities'
-pip install --progress-bar=off pytest pytest-mock pytest-cov
+pip install --progress-bar=off pytest pytest-mock pytest-cov expecttest
 echo '::endgroup::'
 
 python test/smoke_test.py