diff --git a/pkgs/development/python-modules/jsonconversion/default.nix b/pkgs/development/python-modules/jsonconversion/default.nix
index 8574b000a08d..bcc0bb6a7741 100644
--- a/pkgs/development/python-modules/jsonconversion/default.nix
+++ b/pkgs/development/python-modules/jsonconversion/default.nix
@@ -12,7 +12,7 @@
 
 buildPythonPackage rec {
   pname = "jsonconversion";
-  version = "1.0.2";
+  version = "1.1.1";
   pyproject = true;
 
   disabled = pythonOlder "3.11";
@@ -21,7 +21,7 @@ buildPythonPackage rec {
     owner = "DLR-RM";
     repo = "python-jsonconversion";
     tag = version;
-    hash = "sha256-QzBjpOqcMAeQ46QPc1FrVldwD6ttf9Q9CJ1coMJOq7I=";
+    hash = "sha256-FGgvSDweZM1xrdrDLFiGmdAtgxoFjglUlMV+fgo7/ls=";
   };
 
   build-system = [ pdm-backend ];