diff --git a/pkgs/development/python-modules/imgtool/default.nix b/pkgs/development/python-modules/imgtool/default.nix
index 88ceeb233706..54bd8026d9a6 100644
--- a/pkgs/development/python-modules/imgtool/default.nix
+++ b/pkgs/development/python-modules/imgtool/default.nix
@@ -7,18 +7,19 @@
 , click
 , cryptography
 , intelhex
+, pyyaml
 }:
 
 buildPythonPackage rec {
   pname = "imgtool";
-  version = "1.10.0";
+  version = "2.0.0";
   pyproject = true;
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-A7NOdZNKw9lufEK2vK8Rzq9PRT98bybBfXJr0YMQS0A=";
+    hash = "sha256-elQSVeae7B8Sqjjc4fHU/iDYISZ3xoqbbsY0ypGgZhI=";
   };
 
   nativeBuildInputs = [
@@ -30,6 +31,7 @@ buildPythonPackage rec {
     click
     cryptography
     intelhex
+    pyyaml
   ];
 
   pythonImportsCheck = [