diff --git a/pyproject.toml b/pyproject.toml
index eb057b5..2b3f9ba 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -42,7 +42,7 @@ dependencies = [
 dev = [
     "pyright==1.1.414",
     "ruff==0.16.9",
-    "uvicorn==0.52.4",
+    "uvicorn==0.54.0",
     "gel-pydantic-codegen==1.2.0",
     "pyinstrument==5.1.3",
     "fawltydeps==0.20.0",
diff --git a/uv.lock b/uv.lock
index 7a541b9..a6efd80 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1363,7 +1363,7 @@ dev = [
     { name = "pyinstrument", specifier = "==5.1.3" },
     { name = "pyright", specifier = "==1.1.414" },
     { name = "ruff", specifier = "==0.16.9" },
-    { name = "uvicorn", specifier = "==0.52.4" },
+    { name = "uvicorn", specifier = "==0.54.0" },
 ]
 
 [[package]]
@@ -2300,15 +2300,15 @@ wheels = [
 
 [[package]]
 name = "uvicorn"
-version = "0.52.4"
+version = "0.54.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "click" },
     { name = "h11" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/f2/0f/3f86e61397dd33bf2ccf28188c40db6a740658aeebbbf6e7dbc101a1f487/uvicorn-0.52.4.tar.gz", hash = "sha256:73acfee47a0b133c5de13d219492d62d8a31e935f4fe6e41a232451a15379f86", size = 100627, upload-time = "2026-08-19T06:27:41.821Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/da/34/30e9280707135d2cfc589dfff3cb796bd07a3aeb1a3e415ba09dd89d7bb4/uvicorn-0.54.0.tar.gz", hash = "sha256:a2e33cbfaa0306f8e6b0c13e0cb89d7d7a2da3e62b90c66e18c33d9807b28620", size = 112283, upload-time = "2026-09-25T06:52:37.601Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/f1/79/4a20b54ab0491485ccd8c077db2d39187c7f12b3e15485d38a7be37c81b4/uvicorn-0.52.4-py3-none-any.whl", hash = "sha256:f86e41a149d7d05a9969337e3946a9c171c06a5d42680896daaba624aeac8da1", size = 79871, upload-time = "2026-08-19T06:27:40.36Z" },
+    { url = "https://files.pythonhosted.org/packages/38/0c/b54a4fdd7f90a3af8b02ebc9ce6712c2c208b7926a2f7bad95c33ebbe943/uvicorn-0.54.0-py3-none-any.whl", hash = "sha256:505bdb0f318731d45f1f712071fc781a8981f6847a31c902c9f5e652d4f67faf", size = 87427, upload-time = "2026-09-25T06:52:35.829Z" },
 ]
 
 [[package]]