diff --git a/codegen/smithy-dafny-codegen-modules/smithy-python/python-packages/smithy-python/requirements-dev.txt b/codegen/smithy-dafny-codegen-modules/smithy-python/python-packages/smithy-python/requirements-dev.txt
index ff6665bce..faba81eb6 100644
--- a/codegen/smithy-dafny-codegen-modules/smithy-python/python-packages/smithy-python/requirements-dev.txt
+++ b/codegen/smithy-dafny-codegen-modules/smithy-python/python-packages/smithy-python/requirements-dev.txt
@@ -1,4 +1,4 @@
-black==21.11b1
+black==24.3.0
 flake8<6.1
 mypy==1.0.0
 pytest<7.3