diff --git a/poetry.lock b/poetry.lock
index 9c22e8da..2d063cad 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1205,13 +1205,13 @@ tests = ["pytest (>=5.4.1)", "pytest-cov (>=2.8.1)", "pytest-mypy (>=0.8.0)", "p
 
 [[package]]
 name = "prometheus-client"
-version = "0.20.0"
+version = "0.21.0"
 description = "Python client for the Prometheus monitoring system."
 optional = true
 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]
@@ -2332,4 +2332,4 @@ wsgi = ["pyramid"]
 [metadata]
 lock-version = "2.0"
 python-versions = ">=3.10,<3.13"
-content-hash = "b2bdb8738efa5517fa75fab6d33af4072f4eb359a3536a90f570f70c0338f584"
+content-hash = "4adb73e7eeddbf53a9f6b48e9030086b0d5411844ef6673efa9503862e3a584d"
diff --git a/pyproject.toml b/pyproject.toml
index a93a0dff..2c488c83 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -54,7 +54,7 @@ azure-storage-blob = { version = "12.19.1", optional = true }
 azure-identity = { version = "1.18.0", optional = true }
 boto3 = { version = "1.35.31", optional = true }
 bottle = "0.12.25"
-prometheus_client = { version = "0.20.0", optional = true }
+prometheus_client = { version = "0.21.0", optional = true }
 Pillow = "10.3.0"
 pyproj = "3.6.1"
 pyramid = { version = "2.0.2", optional = true }