diff --git a/requirements-dev.txt b/requirements-dev.txt
index ba9628f..1cff826 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 -r requirements-test.txt
-black==21.8b0
+black==21.12b0
 packaging==21.0
 pre-commit~=2.15
 PyGithub~=1.54