diff --git a/backend/routers/config.py b/backend/routers/config.py
index 9086de6..8d70805 100644
--- a/backend/routers/config.py
+++ b/backend/routers/config.py
@@ -12,6 +12,7 @@ class ApiKeysRequest(BaseModel):
     newsapi_key: Optional[str] = None
     eia_api_key: Optional[str] = None
     fred_api_key: Optional[str] = None
+    fmp_api_key: Optional[str] = None
     calendar_refresh_h: Optional[str] = None
 
 
@@ -62,6 +63,9 @@ def update_api_keys(req: ApiKeysRequest):
     if req.fred_api_key is not None:
         set_config("fred_api_key", req.fred_api_key)
         updated.append("fred")
+    if req.fmp_api_key is not None:
+        set_config("fmp_api_key", req.fmp_api_key)
+        updated.append("fmp")
     if req.calendar_refresh_h is not None:
         set_config("calendar_refresh_h", req.calendar_refresh_h)
         updated.append("calendar_refresh_h")