diff --git a/CHANGELOG.md b/CHANGELOG.md
index f03b4231..0d724203 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,8 @@
 # v0.15.2 (unreleased)
 
 * Dropped support for Python 3.9.
-* Updated Telegram API to layer 179.
+* Updated Telegram API to layer 183.
+* Added support for authenticated media downloads.
 * Added support for receiving reactions when using a bot account.
 * Added option to limit file size by chat type.
 * Fixed reply bridging breaking in some cases.
diff --git a/requirements.txt b/requirements.txt
index 7e3599de..861231db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ commonmark>=0.8,<0.10
 aiohttp>=3,<4
 yarl>=1,<2
 mautrix>=0.20.5,<0.21
-tulir-telethon==1.35.0a1
+tulir-telethon==1.37.0a1
 asyncpg>=0.20,<0.30
 mako>=1,<2
 setuptools