diff --git a/pkgs/development/python-modules/remarshal/default.nix b/pkgs/development/python-modules/remarshal/default.nix
index e6d70e5dad6a..65e1c704cbb3 100644
--- a/pkgs/development/python-modules/remarshal/default.nix
+++ b/pkgs/development/python-modules/remarshal/default.nix
@@ -22,14 +22,14 @@
 
 buildPythonPackage rec {
   pname = "remarshal";
-  version = "1.0.1"; # test with `nix-build pkgs/pkgs-lib/format`
+  version = "1.2.0"; # test with `nix-build pkgs/pkgs-lib/format`
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "dbohdan";
     repo = "remarshal";
     tag = "v${version}";
-    hash = "sha256-7Gng/Oc9dwtWx4Xej6hf5IuUGM9/E9Hk9QTntqWk/Z0=";
+    hash = "sha256-y/odWWFJ7KDehYzUKSM/cprcCd+UaArEZFoYbtyW0Ok=";
   };
 
   build-system = [ poetry-core ];