diff --git a/requirements_dev.txt b/requirements_dev.txt
index b066a66..269a47f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,4 +1,4 @@
-black==18.9b0
+black==24.3.0
 flake8==3.5.0
 pytest==3.8.2
 tox==2.9.1