diff --git a/poetry.lock b/poetry.lock
index 18ab0d0..69cee06 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1409,13 +1409,13 @@ twisted = ["twisted"]
 
 [[package]]
 name = "prometheus-client"
-version = "0.20.0"
+version = "0.21.0"
 description = "Python client for the Prometheus monitoring system."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "prometheus_client-0.20.0-py3-none-any.whl", hash = "sha256:cde524a85bce83ca359cc837f28b8c0db5cac7aa653a588fd7e84ba061c329e7"},
-    {file = "prometheus_client-0.20.0.tar.gz", hash = "sha256:287629d00b147a32dcb2be0b9df905da599b2d82f80377083ec8463309a4bb89"},
+    {file = "prometheus_client-0.21.0-py3-none-any.whl", hash = "sha256:4fa6b4dd0ac16d58bb587c04b1caae65b8c5043e85f778f42f5f632f6af2e166"},
+    {file = "prometheus_client-0.21.0.tar.gz", hash = "sha256:96c83c606b71ff2b0a433c98889d275f51ffec6c5e267de37c7a2b5c9aa9233e"},
 ]
 
 [package.extras]
@@ -2550,4 +2550,4 @@ test = ["big-O", "importlib-resources", "jaraco.functools", "jaraco.itertools",
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.9,<4"
-content-hash = "9c49db9f2ea337821712c252ac5f319c9afd13b6b746d46e826ecb6754e75bb2"
+content-hash = "4b5b940c927198b21ae8971dd97ff2bc7fa602cbb88599c262cc0bfbcdc7ca4b"
diff --git a/pyproject.toml b/pyproject.toml
index fd9ecef..3b8d242 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ jishaku = "^2.5.2"
 pyyaml = "^6.0.2"
 watchfiles = "^0.24.0"
 typing-extensions = "^4.12.2"
-prometheus-client = "^0.20.0"
+prometheus-client = "^0.21.0"
 prometheus-async = "^22.2.0"
 parsedatetime = "^2.6"
 humanize = "^4.10.0"