diff --git a/requirements.txt b/requirements.txt
index f67f559..3bca4f4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,7 +9,7 @@ openai==1.57.2
 paho-mqtt==2.1.0
 pylint==3.3.2
 pypng==0.20220715.0
-python-telegram-bot==13.15
+python-telegram-bot==21.10
 pytest==8.3.4
 pytest-cov==6.0.0
 Pypubsub~=4.0.3