diff --git a/tox.ini b/tox.ini
index aba6913e..e2f88bd1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -640,4 +640,6 @@ pathable: ==0.4.3
 pyinstaller: ==6.8.0
 pyinstaller-hooks-contrib: >=2024.6
 ; sub-dep of aiohttp, has PSF-2.0 License https://github.com/aio-libs/aiohappyeyeballs/blob/main/LICENSE
-aiohappyeyeballs: >=2.3.4,<3.0.0
\ No newline at end of file
+aiohappyeyeballs: >=2.3.4,<3.0.0
+; licence is MIT, but the tool does not detect it
+attrs: ==24.3.0