diff --git a/poetry.lock b/poetry.lock
index ac0b431..b7c0012 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry 1.8.4 and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.8.3 and should not be changed by hand.
 
 [[package]]
 name = "aiofiles"
@@ -269,13 +269,13 @@ trio = ["trio (>=0.22.0,<1.0)"]
 
 [[package]]
 name = "httpx"
-version = "0.27.2"
+version = "0.28.0"
 description = "The next generation HTTP client."
 optional = false
 python-versions = ">=3.8"
 files = [
-    {file = "httpx-0.27.2-py3-none-any.whl", hash = "sha256:7bb2708e112d8fdd7829cd4243970f0c223274051cb35ee80c03301ee29a3df0"},
-    {file = "httpx-0.27.2.tar.gz", hash = "sha256:f7c2be1d2f3c3c3160d441802406b206c2b76f5947b11115e6df10c6c65e66c2"},
+    {file = "httpx-0.28.0-py3-none-any.whl", hash = "sha256:dc0b419a0cfeb6e8b34e85167c0da2671206f5095f1baa9663d23bcfd6b535fc"},
+    {file = "httpx-0.28.0.tar.gz", hash = "sha256:0858d3bab51ba7e386637f22a61d8ccddaeec5f3fe4209da3a6168dbb91573e0"},
 ]
 
 [package.dependencies]
@@ -283,7 +283,6 @@ anyio = "*"
 certifi = "*"
 httpcore = "==1.*"
 idna = "*"
-sniffio = "*"
 
 [package.extras]
 brotli = ["brotli", "brotlicffi"]
@@ -771,4 +770,4 @@ h11 = ">=0.9.0,<1"
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.12 <3.13"
-content-hash = "00cef6b1ce5794c1e9aebffaa10de829907d36efc3de7131822e6d3a6188f891"
+content-hash = "21631b1949aa2c75e362447e7f1c9d135838524b309ba14e5d98f4d7d072085d"
diff --git a/pyproject.toml b/pyproject.toml
index 56a66a7..eaab515 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ python = "^3.12 <3.13"
 quart = "^0.19.3"
 tenacity = "^9.0.0"
 hypercorn = {extras = ["uvloop"], version = "^0.17.3"}
-httpx = "^0.27.2"
+httpx = "^0.28.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.2.1"