diff --git a/utils.py b/utils.py
index 8bb1daa..4a802d6 100644
--- a/utils.py
+++ b/utils.py
@@ -4,6 +4,7 @@ import anyio
 import contextlib
 from functools import wraps
 from datetime import datetime, timezone
+from dateutil.parser import parse as parsedate
 
 def as_corofunc(f):
 	@wraps(f)
@@ -60,7 +61,7 @@ class _RateLimitContextManager(contextlib.AbstractAsyncContextManager):
 		if resp.headers.get('X-RateLimit-Remaining') not in {'0', '1'}:
 			return resp
 
-		await sleep_until(datetime.fromisoformat(resp.headers['X-RateLimit-Reset']))
+		await sleep_until(parsedate(resp.headers['X-RateLimit-Reset']))
 		await self._request_cm.__aexit__(*(None,)*3)
 		return await self.__aenter__()