diff --git a/poetry.lock b/poetry.lock
index 2dc5654..7f15a9e 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -811,13 +811,13 @@ testing = ["pytest", "pytest-benchmark"]
 
 [[package]]
 name = "prometheus-client"
-version = "0.21.0"
+version = "0.21.1"
 description = "Python client for the Prometheus monitoring system."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "prometheus_client-0.21.0-py3-none-any.whl", hash = "sha256:4fa6b4dd0ac16d58bb587c04b1caae65b8c5043e85f778f42f5f632f6af2e166"},
-    {file = "prometheus_client-0.21.0.tar.gz", hash = "sha256:96c83c606b71ff2b0a433c98889d275f51ffec6c5e267de37c7a2b5c9aa9233e"},
+    {file = "prometheus_client-0.21.1-py3-none-any.whl", hash = "sha256:594b45c410d6f4f8888940fe80b5cc2521b305a1fafe1c58609ef715a001f301"},
+    {file = "prometheus_client-0.21.1.tar.gz", hash = "sha256:252505a722ac04b0456be05c05f75f45d760c2911ffc45f2a06bcaed9f3ae3fb"},
 ]
 
 [package.extras]
@@ -1635,4 +1635,4 @@ test = ["big-O", "jaraco.functools", "jaraco.itertools", "jaraco.test", "more-it
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.9"
-content-hash = "c7ee1aae5bd1b1269015e5e7bcee58515da2a6aa342d477bb5ac6424a2fd3b32"
+content-hash = "e47987acde2a13a39232ed854b45cb874d663145fed4cd38b934bd6db74d81e4"
diff --git a/pyproject.toml b/pyproject.toml
index 99796b6..8e4987e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,7 +11,7 @@ start = "gh_actions_exporter.main:start"
 [tool.poetry.dependencies]
 python = "^3.9"
 fastapi = "^0.115.6"
-prometheus-client = "^0.21.0"
+prometheus-client = "^0.21.1"
 uvicorn = { extras = ["standard"], version = "^0.34.0" }
 python-multipart = "^0.0.19"
 PyYAML = "^6.0"