diff --git a/tox.ini b/tox.ini
index dde34b987b9b08bfdfc51a06dd46a9a0e0494f28..ddfb4714f6b86d93e9567fe3c1410f2a1ce965cf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -7,6 +7,7 @@ deps=nose
     git+https://gitlab.indiscale.com/caosdb/src/caosdb-pylib.git@dev
     pytest
     pytest-cov
+    gitignore-parser
     openpyxl
     xlrd == 1.2
     h5py