diff --git a/requirements.txt b/requirements.txt
index 5420f7afc6f6f05eb2403f2434f1871e4f9d3102..1eb60147aba0f845f5450a04bb238b6476ec38a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,7 @@ lxml
 pyecore
 piacere-doml-synthesis
 lark
-uvicorn
\ No newline at end of file
+uvicorn
+pytest
+pytest-xdist
+pytest-subtests
\ No newline at end of file