diff --git a/requirements.txt b/requirements.txt
index b4458bb..dffb0c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,6 +2,6 @@ arrow==1.4.0
 environs==14.5.0
 marshmallow==4.1.0
 paho-mqtt==2.1.0
-pymodbus==3.11.3
+pymodbus==3.11.4
 pyyaml==6.0.3
 requests==2.32.5
\ No newline at end of file