diff --git a/requirements-dev.txt b/requirements-dev.txt
index fe5b774..2e9935a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,5 +1,5 @@
 -e .
-black==21.9b0
+black==21.10b0
 bandit==1.7.0
 coverage==6.1.1
 docutils==0.18