diff --git a/poetry.lock b/poetry.lock
index d3583c7..a3ebf23 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1698,26 +1698,27 @@ uuid-utils = ["uuid-utils (>=0.6.0) ; python_version < \"3.14\""]
 
 [[package]]
 name = "pydantic-settings"
-version = "2.15.0"
+version = "2.16.1"
 description = "Settings management using Pydantic"
 optional = false
-python-versions = ">=3.10"
+python-versions = ">=3.11"
 groups = ["main"]
 files = [
-    {file = "pydantic_settings-2.15.0-py3-none-any.whl", hash = "sha256:0ba092c291c94baceb5eff768aa0d56400a457585bc0175925a5a5510303da42"},
-    {file = "pydantic_settings-2.15.0.tar.gz", hash = "sha256:694b793e84f766ba76a90ebdefc01d0a9a045dab0382bee70393da93712ad117"},
+    {file = "pydantic_settings-2.16.1-py3-none-any.whl", hash = "sha256:30f5313340da4e8f1b440d1910b92a5bc3ccbb6b4ba70ec2b8395bc921f418f5"},
+    {file = "pydantic_settings-2.16.1.tar.gz", hash = "sha256:aff602a1886338c2df3d1e958e2193a8dc33cec75b91f202e83fd98484b4b0da"},
 ]
 
 [package.dependencies]
 pydantic = ">=2.7.0"
-python-dotenv = ">=0.21.0"
+python-dotenv = ">=1.2.2"
+typing-extensions = ">=4.0.0"
 typing-inspection = ">=0.4.0"
 
 [package.extras]
 aws-secrets-manager = ["boto3 (>=1.35.0)"]
+aws-systems-manager = ["boto3 (>=1.35.0)"]
 azure-key-vault = ["azure-identity (>=1.16.0)", "azure-keyvault-secrets (>=4.8.0)"]
 gcp-secret-manager = ["google-cloud-secret-manager (>=2.23.1)"]
-toml = ["tomli (>=2.0.1)"]
 yaml = ["pyyaml (>=6.0.1)"]
 
 [[package]]
@@ -3056,4 +3057,4 @@ dev = ["pytest", "setuptools"]
 [metadata]
 lock-version = "2.1"
 python-versions = ">=3.14,<4.0"
-content-hash = "e642da60aacb890d22f2fba799e4d3bf063ee4da26552089db78c86a28b83b3b"
+content-hash = "16dab66cf58e3ca3156cc30948a187dcb6cd50ca6ad163830dcb9882fc02ed4e"
diff --git a/pyproject.toml b/pyproject.toml
index b19e8d6..bc4129f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,7 +10,7 @@ requires-python = ">=3.14,<4.0"
 
 dependencies = [
     "fastapi[standard] (>=0.141.1,<0.142.0)",
-    "pydantic-settings (>=2.15.0,<3.0.0)",
+    "pydantic-settings (>=2.16.1,<3.0.0)",
     "sqlalchemy[asyncio] (>=2.1.4,<3.0.0)",
     "alembic (>=1.20.0,<2.0.0)",
     "pyjwt (>=2.15.1,<3.0.0)",