diff --git a/poetry.lock b/poetry.lock
index 43ed2da..b540fc4 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -233,13 +233,13 @@ uvloop = ["uvloop (>=0.15.2)"]
 
 [[package]]
 name = "blacken-docs"
-version = "1.15.0"
+version = "1.16.0"
 description = "Run Black on Python code blocks in documentation files."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "blacken_docs-1.15.0-py3-none-any.whl", hash = "sha256:020657fd480f9f0a4dc82b9278390891ebd5216992b026e652c5b31d0e9c405d"},
-    {file = "blacken_docs-1.15.0.tar.gz", hash = "sha256:2915242add4e584738027b5bebafd4120c174a6c7645e1d8ce1c2f3265edc48a"},
+    {file = "blacken_docs-1.16.0-py3-none-any.whl", hash = "sha256:b0dcb84b28ebfb352a2539202d396f50e15a54211e204a8005798f1d1edb7df8"},
+    {file = "blacken_docs-1.16.0.tar.gz", hash = "sha256:b4bdc3f3d73898dfbf0166f292c6ccfe343e65fc22ddef5319c95d1a8dcc6c1c"},
 ]
 
 [package.dependencies]
@@ -1422,4 +1422,4 @@ multidict = ">=4.0"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "4de7915faaeaeb34acf656f77b23c3ae0df394b7e54eb7d801bb790aa840ecf4"
+content-hash = "234b9255bcc6b60ec6d8bb00fb42a4c7aae148b378e8d9d7a4176a574f9b2c0f"
diff --git a/pyproject.toml b/pyproject.toml
index ea96ecc..6aaf287 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ Changelog = "https://github.com/klaasnicolaas/python-gridnet/releases"
 ruff = "0.0.284"
 aresponses = "2.1.6"
 black = "23.7.0"
-blacken-docs = "1.15.0"
+blacken-docs = "1.16.0"
 codespell = "2.2.5"
 coverage = {version = "7.3.0", extras = ["toml"]}
 mypy = "1.5.1"