diff --git a/poetry.lock b/poetry.lock
index 5e4c61a..6114eff 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -182,33 +182,29 @@ tests-no-zope = ["cloudpickle", "hypothesis", "mypy (>=1.1.1)", "pympler", "pyte
 
 [[package]]
 name = "black"
-version = "23.9.1"
+version = "23.10.0"
 description = "The uncompromising code formatter."
 optional = false
 python-versions = ">=3.8"
 files = [
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+    {file = "black-23.10.0.tar.gz", hash = "sha256:31b9f87b277a68d0e99d2905edae08807c007973eaa609da5f0c62def6b7c0bd"},
 ]
 
 [package.dependencies]
@@ -1314,4 +1310,4 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "ab0b5f3431e4a73cc7ff3f6d73f5e3184b734b8a4e68aecf15427143e0aee295"
+content-hash = "eb8642ab45e67088fecc6121017646dbb2f1b80e0de221b57ae35840cbfa6327"
diff --git a/pyproject.toml b/pyproject.toml
index fd5f39c..0ccb19f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ Changelog = "https://github.com/klaasnicolaas/python-gridnet/releases"
 [tool.poetry.group.dev.dependencies]
 ruff = "0.1.0"
 aresponses = "2.1.6"
-black = "23.9.1"
+black = "23.10.0"
 blacken-docs = "1.16.0"
 codespell = "2.2.6"
 coverage = {version = "7.3.2", extras = ["toml"]}