diff --git a/pyproject.toml b/pyproject.toml
index e84f76d..68bb9e6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,5 +6,5 @@ readme = "README.md"
 requires-python = ">=3.13"
 dependencies = [
     "google-genai==1.12.1",
-    "python-dotenv==1.1.0",
+    "python-dotenv==1.2.2",
 ]
diff --git a/uv.lock b/uv.lock
index 0814ecb..b3767a5 100644
--- a/uv.lock
+++ b/uv.lock
@@ -85,7 +85,7 @@ dependencies = [
 [package.metadata]
 requires-dist = [
     { name = "google-genai", specifier = "==1.12.1" },
-    { name = "python-dotenv", specifier = "==1.1.0" },
+    { name = "python-dotenv", specifier = "==1.2.2" },
 ]
 
 [[package]]
@@ -232,11 +232,11 @@ wheels = [
 
 [[package]]
 name = "python-dotenv"
-version = "1.1.0"
+version = "1.2.2"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/88/2c/7bb1416c5620485aa793f2de31d3df393d3686aa8a8506d11e10e13c5baf/python_dotenv-1.1.0.tar.gz", hash = "sha256:41f90bc6f5f177fb41f53e87666db362025010eb28f60a01c9143bfa33a2b2d5", size = 39920, upload-time = "2025-03-25T10:14:56.835Z" }
+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/1e/18/98a99ad95133c6a6e2005fe89faedf294a748bd5dc803008059409ac9b1e/python_dotenv-1.1.0-py3-none-any.whl", hash = "sha256:d7c01d9e2293916c18baf562d95698754b0dbbb5e74d457c45d4f6561fb9d55d", size = 20256, upload-time = "2025-03-25T10:14:55.034Z" },
+    { 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]]