diff --git a/requirements.txt b/requirements.txt
index d30a184..1ef0fe7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-black==23.9.1
+black==23.10.0
 intake_esm==2023.7.7
 mypy==1.6.0
 pytest==7.4.2