diff --git a/pyproject.toml b/pyproject.toml
index 7135829b..d7cb2a91 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
     "qrcode>=8.1",
     "rich>=15.0.0",
     "uvicorn==0.46.0",
-    "sse-starlette>=3.4.1",
+    "sse-starlette>=3.4.2",
     "aiohttp>=3.13.5",
     "packaging>=26.2",
     "sqlalchemy[asyncio]>=2.0.49",
diff --git a/uv.lock b/uv.lock
index 76a570ff..606d824b 100644
--- a/uv.lock
+++ b/uv.lock
@@ -948,7 +948,7 @@ requires-dist = [
     { name = "qrcode", specifier = ">=8.1" },
     { name = "rich", specifier = ">=15.0.0" },
     { name = "sqlalchemy", extras = ["asyncio"], specifier = ">=2.0.49" },
-    { name = "sse-starlette", specifier = ">=3.4.1" },
+    { name = "sse-starlette", specifier = ">=3.4.2" },
     { name = "textual", extras = ["syntax"], specifier = ">=8.2.5" },
     { name = "typer", specifier = ">=0.25.1" },
     { name = "uvicorn", specifier = "==0.46.0" },
@@ -1456,15 +1456,15 @@ wheels = [
 
 [[package]]
 name = "sse-starlette"
-version = "3.4.1"
+version = "3.4.2"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
     { name = "anyio" },
     { name = "starlette" },
 ]
-sdist = { url = "https://files.pythonhosted.org/packages/e1/9a/f35932a8c0eb6b2287b66fa65a0321df8c84e4e355a659c1841a37c39fdb/sse_starlette-3.4.1.tar.gz", hash = "sha256:f780bebcf6c8997fe514e3bd8e8c648d8284976b391c8bed0bcb1f611632b555", size = 35127, upload-time = "2026-04-26T13:32:32.292Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/38/82/10cdfab4ab663a6b6bd624d33f55b2cfa41af5105be033a6d5d135a92c5f/sse_starlette-3.4.2.tar.gz", hash = "sha256:2f9a7f51ed84395a0427fb9f66cb1ec11f7899d977a72cbc9070b962a2e14489", size = 35236, upload-time = "2026-05-06T19:42:13.727Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/ff/07/45c21ed03d708c477367305726b89919b020a3a2a01f72aaf5ad941caf35/sse_starlette-3.4.1-py3-none-any.whl", hash = "sha256:6b43cf21f1d574d582a6e1b0cfbde1c94dc86a32a701a7168c99c4475c6bd1d0", size = 16487, upload-time = "2026-04-26T13:32:30.819Z" },
+    { url = "https://files.pythonhosted.org/packages/c1/27/351c71e803c56090d8d3bf9520422debeb8ed938871fd4f7ef519805a6c5/sse_starlette-3.4.2-py3-none-any.whl", hash = "sha256:6ea5d35b7ce979a3de5a0db5f77fe886b1616e4b3e1ad93fba502bd9b5fb662f", size = 16516, upload-time = "2026-05-06T19:42:12.201Z" },
 ]
 
 [[package]]