diff --git a/pyproject.toml b/pyproject.toml
index 9698681..a47352b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ name = "path"
 version = "1.0.0"
 dependencies = [
     "flask==3.1.2",
-    "python-dotenv==1.1.1",
+    "python-dotenv==1.2.2",
     "requests==2.32.5",
     "gunicorn==23.0.0",
     "flask-openapi3==4.0.0",
diff --git a/requirements-py314-minimal.txt b/requirements-py314-minimal.txt
index ae80440..c0d4274 100644
--- a/requirements-py314-minimal.txt
+++ b/requirements-py314-minimal.txt
@@ -1,6 +1,6 @@
 # Python 3.14 compatible minimal requirements (avoiding pydantic conflicts)
 flask==3.0.3
-python-dotenv==1.1.1
+python-dotenv==1.2.2
 requests==2.32.5
 gunicorn==23.0.0
 google-genai>=1.57.0
diff --git a/requirements-py314.txt b/requirements-py314.txt
index 2891994..d17d23d 100644
--- a/requirements-py314.txt
+++ b/requirements-py314.txt
@@ -1,6 +1,6 @@
 # Python 3.14 compatible requirements (updated from py38 versions)
 flask==3.0.3
-python-dotenv==1.1.1
+python-dotenv==1.2.2
 requests==2.32.5
 gunicorn==23.0.0
 google-genai>=1.57.0
diff --git a/requirements-py38.txt b/requirements-py38.txt
index cf92eaa..45b361c 100644
--- a/requirements-py38.txt
+++ b/requirements-py38.txt
@@ -1,6 +1,6 @@
 # Python 3.8 compatible requirements (no AI features - not supported)
 flask==2.3.3
-python-dotenv==1.0.1
+python-dotenv==1.2.2
 requests==2.31.0
 gunicorn==23.0.0
 vercel==0.2.1
diff --git a/requirements-py39.txt b/requirements-py39.txt
index 4548acb..1795bb0 100644
--- a/requirements-py39.txt
+++ b/requirements-py39.txt
@@ -1,6 +1,6 @@
 # Python 3.9 compatible requirements (uses google-genai 1.47.0)
 flask==3.0.3
-python-dotenv==1.1.1
+python-dotenv==1.2.2
 requests==2.32.5
 gunicorn==23.0.0
 google-genai==1.47.0
diff --git a/requirements.in b/requirements.in
index 066851e..133b6bc 100644
--- a/requirements.in
+++ b/requirements.in
@@ -1,5 +1,5 @@
 flask==3.1.2
-python-dotenv==1.1.1
+python-dotenv==1.2.2
 requests==2.32.5
 gunicorn==23.0.0
 google-generativeai==0.8.6