diff --git a/src/requirements.txt b/src/requirements.txt
index d556dae..8bc137b 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,2 +1,2 @@
 paho-mqtt==2.1.0
-python-telegram-bot==21.7
+python-telegram-bot==21.9