diff --git a/src/mcp_server/pyproject.toml b/src/mcp_server/pyproject.toml
index cc038f5b0..e668f3d85 100644
--- a/src/mcp_server/pyproject.toml
+++ b/src/mcp_server/pyproject.toml
@@ -17,7 +17,7 @@ dynamic = ["version"]
 dependencies = [
   "fastmcp==3.2.0",
   "uvicorn[standard]==0.38.0",
-  "python-dotenv==1.1.1",
+  "python-dotenv==1.2.2",
   "azure-identity==1.19.0",
   "pydantic==2.11.7",
   "pydantic-settings==2.6.1",
diff --git a/src/mcp_server/uv.lock b/src/mcp_server/uv.lock
index 00858cef0..442fc3411 100644
--- a/src/mcp_server/uv.lock
+++ b/src/mcp_server/uv.lock
@@ -784,7 +784,7 @@ requires-dist = [
     { name = "pydantic-settings", specifier = "==2.6.1" },
     { name = "pytest", marker = "extra == 'dev'", specifier = "==9.0.3" },
     { name = "pytest-asyncio", marker = "extra == 'dev'", specifier = "==1.3.0" },
-    { name = "python-dotenv", specifier = "==1.1.1" },
+    { name = "python-dotenv", specifier = "==1.2.2" },
     { name = "python-multipart", specifier = "==0.0.26" },
     { name = "urllib3", specifier = "==2.6.3" },
     { name = "uvicorn", extras = ["standard"], specifier = "==0.38.0" },
@@ -1242,11 +1242,11 @@ wheels = [
 
 [[package]]
 name = "python-dotenv"
-version = "1.1.1"
+version = "1.2.2"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/f6/b0/4bc07ccd3572a2f9df7e6782f52b0c6c90dcbb803ac4a167702d7d0dfe1e/python_dotenv-1.1.1.tar.gz", hash = "sha256:a8a6399716257f45be6a007360200409fce5cda2661e3dec71d23dc15f6189ab", size = 41978, upload-time = "2025-06-24T04:21:07.341Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/82/ed/0301aeeac3e5353ef3d94b6ec08bbcabd04a72018415dcb29e588514bba8/python_dotenv-1.2.2.tar.gz", hash = "sha256:2c371a91fbd7ba082c2c1dc1f8bf89ca22564a087c2c287cd9b662adde799cf3", size = 50135, upload-time = "2026-03-01T16:00:26.196Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/5f/ed/539768cf28c661b5b068d66d96a2f155c4971a5d55684a514c1a0e0dec2f/python_dotenv-1.1.1-py3-none-any.whl", hash = "sha256:31f23644fe2602f88ff55e1f5c79ba497e01224ee7737937930c448e4d0e24dc", size = 20556, upload-time = "2025-06-24T04:21:06.073Z" },
+    { url = "https://files.pythonhosted.org/packages/0b/d7/1959b9648791274998a9c3526f6d0ec8fd2233e4d4acce81bbae76b44b2a/python_dotenv-1.2.2-py3-none-any.whl", hash = "sha256:1d8214789a24de455a8b8bd8ae6fe3c6b69a5e3d64aa8a8e5d68e694bbcb285a", size = 22101, upload-time = "2026-03-01T16:00:25.09Z" },
 ]
 
 [[package]]