diff --git a/requirements/tests.txt b/requirements/tests.txt
index f3b1a63..d63c3c5 100644
--- a/requirements/tests.txt
+++ b/requirements/tests.txt
@@ -1,3 +1,4 @@
 coveralls>=4.0.1,<5
 pytest>=8.3.2,<9
-pyyaml>=6.0.2,<7
\ No newline at end of file
+pyyaml>=6.0.2,<7
+tox>=4.23.2,<5
\ No newline at end of file