diff --git a/requirements_dev.txt b/requirements_dev.txt
index 8bddf4d..cd61110 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-black==21.4b2
+black==24.3.0
 coverage==4.5.4
 Sphinx==1.8.5
 sphinxcontrib-napoleon==0.7