diff --git a/requirements.in b/requirements.in
index bc2f5f7..52935b9 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,4 +1,4 @@
-black ~= 23.9.1
+black ~= 23.10.0
 Flask ~= 3.0.0
 flake8 ~= 6.1.0
 pytest ~= 7.4.2
diff --git a/requirements.txt b/requirements.txt
index dd9571e..a6aeda4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --resolver=backtracking
 #
-black==23.9.1
+black==23.10.0
     # via -r requirements.in
 blinker==1.6.2
     # via flask