diff --git a/keycloak_oauth/starlette_admin.py b/keycloak_oauth/starlette_admin.py
index 2e22b0f..a1b9c5f 100644
--- a/keycloak_oauth/starlette_admin.py
+++ b/keycloak_oauth/starlette_admin.py
@@ -52,7 +52,8 @@ async def handle_auth_callback(self, request: Request) -> RedirectResponse:
 
     @login_not_required
     async def public_keys(self, request: Request) -> JSONResponse:
-        return JSONResponse(self.keycloak.public_keys(request))
+        keys = await self.keycloak.public_keys(request)
+        return JSONResponse(keys)
 
     def setup_admin(self, admin: BaseAdmin) -> None:
         super().setup_admin(admin)