diff --git a/pyproject.toml b/pyproject.toml
index 93ae414c..6c65f563 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -37,7 +37,7 @@ dev = [
     # + ruff resolution. The mypy override below mirrors the fastapi_mcp
     # one for the /tests/load/locust/locustfile.py HttpUser subclass.
     # TODO: bump <3.0 -> <4.0 when locust 3.0 ships GA (Q1 2026 estimate).
-    "locust>=2.40,<3.0",
+    "locust>=2.46.1,<3.0",
     # v0.10.26-pre followup-6: mypy.ini declares
     # ``plugins = pydantic.mypy`` but uv only resolves the ROOT
     # [dependency-groups].dev for ``uv run mypy`` invocations --
diff --git a/uv.lock b/uv.lock
index 10735586..e0f5a552 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1038,7 +1038,7 @@ dev = [
     { name = "fastapi", specifier = ">=0.115,<1" },
     { name = "fastapi-mcp", specifier = ">=0.4,<1" },
     { name = "httpx", specifier = ">=0.27" },
-    { name = "locust", specifier = ">=2.40,<3.0" },
+    { name = "locust", specifier = ">=2.46.1,<3.0" },
     { name = "minio", specifier = ">=7.2,<8" },
     { name = "mypy", specifier = ">=2.2.0" },
     { name = "pip-audit", specifier = ">=2.7" },
@@ -1383,7 +1383,7 @@ wheels = [
 
 [[package]]
 name = "locust"
-version = "2.45.0"
+version = "2.46.1"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "configargparse" },
@@ -1402,9 +1402,9 @@ dependencies = [
     { name = "requests" },
     { name = "werkzeug" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/03/4e/62c3fee4af4720aceac2c102a6a1d69707b7b28e83fc44b82581e86155d7/locust-2.45.0.tar.gz", hash = "sha256:9fa840a4ef8c2624d7719f6e642bce3e19079aa4eea755c99c5282087903e13a", size = 1477628, upload-time = "2026-07-09T08:20:46.931Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/43/9a/477d75bb2f19e92b4996493519af3e36eaeb1248e1e94637817cf60b6201/locust-2.46.1.tar.gz", hash = "sha256:ed26148522522d13fb453c5e4e281a82650a3b2ec5ad5f00a738ff22a0944808", size = 1478138, upload-time = "2026-07-21T19:01:43.434Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/e8/a5/c138eda829a34f00d1dbaa90bffdf2b31defcc55a722978e1d5774500d78/locust-2.45.0-py3-none-any.whl", hash = "sha256:a8b4d059296a38fa79432be60fb6904f70367e7d6fb824da64b744c45d8073ae", size = 1497273, upload-time = "2026-07-09T08:20:45.423Z" },
+    { url = "https://files.pythonhosted.org/packages/07/71/9f3e058c4afd09c100bd7da5a2f45f4fc86aac97139c3a11f55963119e1a/locust-2.46.1-py3-none-any.whl", hash = "sha256:5111b14e856ee1e570276fdd621acb3b534557f8f0feb348fcfefc0571c680f4", size = 1497688, upload-time = "2026-07-21T19:01:41.367Z" },
 ]
 
 [[package]]