diff --git a/src/backend/requirements.txt b/src/backend/requirements.txt
index 47c2730..afe318f 100644
--- a/src/backend/requirements.txt
+++ b/src/backend/requirements.txt
@@ -7,7 +7,7 @@ requests==2.32.3
 python-dateutil==2.8.2
 Jetson.GPIO==2.0.21
 awsiotsdk==1.11.9
-marshmallow==3.19.0
+marshmallow==3.26.2
 pyyaml==5.4.1
 grpcio==1.56.2
 grpcio-tools==1.51.1