diff --git a/setup.py b/setup.py
index 3feb4ed8..f8d7ce27 100644
--- a/setup.py
+++ b/setup.py
@@ -46,7 +46,7 @@
         "bitmath==1.3.3.1",
         "certifi",
         "colorama==0.4.6",
-        "marshmallow==3.19.0",
+        "marshmallow==3.20.1",
         "pyyaml==6.0.1",
         "requests==2.31.0",
         "tabulate>=0.8,<1.0",