diff --git a/pyproject.toml b/pyproject.toml
index a50d83e..534ba2d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,7 +23,7 @@ dependencies = [
   "requests==2.34.2",
   "pydantic==2.13.4",
   "httpx==0.28.1",
-  "fastmcp==3.4.7",
+  "fastmcp==4.0.5",
 ]
 
 [project.scripts]
diff --git a/requirements.txt b/requirements.txt
index 92c6579..d897b1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ uvicorn[standard]==0.51.0
 requests==2.34.2
 pydantic==2.13.4
 httpx==0.28.1
-fastmcp==3.4.7
+fastmcp==4.0.5