diff --git a/requirements_dev.txt b/requirements_dev.txt
index e6ed264a..5d9e5fce 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 pip==24.3.1
 wheel==0.45.1
 flake8==7.1.1
-tox
+tox==4.23.2
 coverage
 Sphinx>=5.0.0
 sphinx_rtd_theme