diff --git a/src/_zkapauthorizer/controller.py b/src/_zkapauthorizer/controller.py
index 69571ca2c03ab26d3389775df4849f1134b0e256..f7a5ee31dbc41bc93ebb4ab383c873c1c79a3665 100644
--- a/src/_zkapauthorizer/controller.py
+++ b/src/_zkapauthorizer/controller.py
@@ -102,7 +102,7 @@ from .model import (
     Error as model_Error,
 )
 
-RETRY_INTERVAL = timedelta(milliseconds=1)
+RETRY_INTERVAL = timedelta(milliseconds=1000)
 
 @attr.s
 class UnexpectedResponse(Exception):