diff --git a/quart_session/sessions.py b/quart_session/sessions.py
index 77c2c20..f0df728 100644
--- a/quart_session/sessions.py
+++ b/quart_session/sessions.py
@@ -228,8 +228,9 @@ class RedisSessionInterface(SessionInterface):
         """
         if self.backend is None:
             import aioredis
+            uri = app.config["REDIS_URI"] if "REDIS_URI" in app.config else "redis://localhost"
             self.backend = await aioredis.from_url(
-                "redis://localhost", encoding="utf-8", decode_responses=True
+                uri, encoding="utf-8", decode_responses=True
             )
 
     async def get(self, key: str, app: Quart = None):