diff --git a/requirements.txt b/requirements.txt
index 4cf77a75..771e7b17 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,5 +6,5 @@ commonmark>=0.8,<0.10
 aiohttp>=3,<4
 yarl>=1,<2
 mautrix>=0.8.11,<0.9
-telethon>=1.18,<1.20
+telethon>=1.18,<1.19
 telethon-session-sqlalchemy>=0.2.14,<0.3