diff --git a/requirements.txt b/requirements.txt
index 7e1cf9b..4057ec0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-python-telegram-bot==20
+python-telegram-bot==13.5
 requests==2.25.1
 pandas==2.0.0
 schedule==1.0.0