diff --git a/pyproject.toml b/pyproject.toml
index 1cf1d12..d0beb4b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ classifiers = [
 ]
 
 dependencies = [
-    "fastapi>=0.109.0",
+    "fastapi>=0.139.0",
     "uvicorn>=0.27.0",
     "pydantic>=2.13.4",
     "cryptography>=42.0.0",
diff --git a/requirements.txt b/requirements.txt
index 82febb8..8727990 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # Requirements for Agent Bridge
 
 # Core dependencies
-fastapi>=0.109.0
+fastapi>=0.139.0
 uvicorn>=0.27.0
 pydantic>=2.13.4