diff --git a/requirements.txt b/requirements.txt
index 6ab75e2..1793cf4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-fastmcp>=3,<4
+fastmcp>=4,<5
 python-dotenv>=1,<2
 uvicorn>=0.34,<1
 starlette>=1.2,<2