diff --git a/pyproject.toml b/pyproject.toml
index 439101e..e577bf7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -24,7 +24,7 @@ classifiers = [
 dependencies = [
     "curl-cffi>=0.14.0,<1",
     "eunomia-mcp>=0.3.10",
-    "fastmcp[openai]>=2.14,<3",
+    "fastmcp[openai]>=2.14,<4",
     "httpx[http2]>=0.28.1,<1",
     "mcp[cli]>=1.12.1,<2",
     "msgspec>=0.20.0,<1",