diff --git a/poetry.lock b/poetry.lock
index f041e8e..4f4f3a4 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -303,13 +303,13 @@ trio = ["trio (>=0.22.0,<1.0)"]
 
 [[package]]
 name = "httpx"
-version = "0.27.2"
+version = "0.28.1"
 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-0.28.1-py3-none-any.whl", hash = "sha256:d909fcccc110f8c7faf814ca82a9a4d816bc5a6dbfea25d6591d6985b8ba59ad"},
+    {file = "httpx-0.28.1.tar.gz", hash = "sha256:75e98c5f16b0f35b567856f597f06ff2270a374470a5c2392242528e3e3e42fc"},
 ]
 
 [package.dependencies]
@@ -317,7 +317,6 @@ anyio = "*"
 certifi = "*"
 httpcore = "==1.*"
 idna = "*"
-sniffio = "*"
 
 [package.extras]
 brotli = ["brotli", "brotlicffi"]
@@ -1011,17 +1010,6 @@ files = [
     {file = "ruff-0.9.10.tar.gz", hash = "sha256:9bacb735d7bada9cfb0f2c227d3658fc443d90a727b47f206fb33f52f3c0eac7"},
 ]
 
-[[package]]
-name = "sniffio"
-version = "1.3.1"
-description = "Sniff out which async library your code is running under"
-optional = false
-python-versions = ">=3.7"
-files = [
-    {file = "sniffio-1.3.1-py3-none-any.whl", hash = "sha256:2f6da418d1f1e0fddd844478f41680e794e6051915791a034ff65e5f100525a2"},
-    {file = "sniffio-1.3.1.tar.gz", hash = "sha256:f4324edc670a0f49750a81b895f35c3adb843cca46f0530f79fc1babb23789dc"},
-]
-
 [[package]]
 name = "tenacity"
 version = "8.5.0"
@@ -1139,4 +1127,4 @@ typing-extensions = {version = ">=4.13.2", markers = "python_version < \"3.11\""
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.10"
-content-hash = "abb552bd4c21d7347ca5376aae437b27594fe3aa8dc138eb42a8da538e052e4f"
+content-hash = "e6dbb151c5e849e8e3d1856c7742e324ba90f16481e19a9f9b7b2cc277dcb390"
diff --git a/pyproject.toml b/pyproject.toml
index c300632..d4dca42 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = "^3.10"
-httpx = "^0.27.0"             # Concurrency (async) and HTTP requests
+httpx = "^0.28.1"             # Concurrency (async) and HTTP requests
 pydantic = "^2.6.0"           # Type safety and validation
 email-validator = "^2.1.1"    # REQUIRED by pydantic.EmailStr for email format validation
 tenacity = "^8.2.3"           # Resilience and retry logic