diff --git a/requirements.txt b/requirements.txt
index fd9dd6ad..898e0898 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ python-magic>=0.4,<0.5
 commonmark>=0.8,<0.10
 aiohttp>=3,<4
 yarl>=1,<2
-mautrix>=0.20.8,<0.21
+mautrix>=0.20.9rc3,<0.21
 tulir-telethon==1.99.0a6
 asyncpg>=0.20,<1
 mako>=1,<2