diff --git a/poetry.lock b/poetry.lock
index 24913bab..aef8eef1 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1564,13 +1564,13 @@ testing = ["pytest", "pytest-benchmark"]
 
 [[package]]
 name = "prometheus-client"
-version = "0.20.0"
+version = "0.21.1"
 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-0.21.1-py3-none-any.whl", hash = "sha256:594b45c410d6f4f8888940fe80b5cc2521b305a1fafe1c58609ef715a001f301"},
+    {file = "prometheus_client-0.21.1.tar.gz", hash = "sha256:252505a722ac04b0456be05c05f75f45d760c2911ffc45f2a06bcaed9f3ae3fb"},
 ]
 
 [package.extras]
@@ -3297,4 +3297,4 @@ type = ["pytest-mypy"]
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.11"
-content-hash = "275c674358244368fa301f0e83ffa08f782b189c0cadc3c54f98b3f706a765a9"
+content-hash = "e2a5a6bfbee7434e04b89bda04de0886c86655832962c0ec9ce8ac650eae99a7"
diff --git a/pyproject.toml b/pyproject.toml
index ffbf249e..cc98d8fa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ rich = "^13.7.1"
 opentelemetry-api = "^1.25.0"
 opentelemetry-sdk = "^1.25.0"
 opentelemetry-exporter-prometheus = "^0.46b0"
-prometheus-client = "^0.20.0"
+prometheus-client = "^0.21.1"
 sqlalchemy = "^2.0.31"
 sqla-wrapper = "^6.0.0"
 alembic = "^1.13.2"