diff --git a/pkgs/development/python-modules/plopp/default.nix b/pkgs/development/python-modules/plopp/default.nix
index 74d4d9ff8617..c9d83bceb510 100644
--- a/pkgs/development/python-modules/plopp/default.nix
+++ b/pkgs/development/python-modules/plopp/default.nix
@@ -36,14 +36,14 @@
 
 buildPythonPackage (finalAttrs: {
   pname = "plopp";
-  version = "26.2.1";
+  version = "26.3.1";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "scipp";
     repo = "plopp";
     tag = finalAttrs.version;
-    hash = "sha256-31F6hVrVRNdvzAEifdeNsa5B52D/VtNWn4F9qUcSKJ0=";
+    hash = "sha256-A8F2Gd0HmHRlusScFoFulsFaqaXA/HxmtT8ODdRLA+U=";
   };
 
   build-system = [