diff --git a/pkgs/development/python-modules/plopp/default.nix b/pkgs/development/python-modules/plopp/default.nix
index 0971ed49002a..d9aa0d5e535e 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 = "25.11.0";
+  version = "26.2.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "scipp";
     repo = "plopp";
     tag = finalAttrs.version;
-    hash = "sha256-3vmHRPjv7iUd6ky7XzfdChpAI++ELh6vwmtELK7dwaE=";
+    hash = "sha256-JYgha+gmp9Ht6Ly9+i6dT+jdiDgsAEH5qH5MJ4n9LR8=";
   };
 
   build-system = [
@@ -77,6 +77,7 @@ buildPythonPackage (finalAttrs: {
   disabledTests = lib.optionals (pythonAtLeast "3.14") [
     # RuntimeError: There is no current event loop in thread 'MainThread'
     "test_move_cut"
+    "test_value_cuts"
   ];
 
   env = {
diff --git a/pkgs/development/python-modules/scipp/default.nix b/pkgs/development/python-modules/scipp/default.nix
index 2bfd3534c146..0439f7912bc2 100644
--- a/pkgs/development/python-modules/scipp/default.nix
+++ b/pkgs/development/python-modules/scipp/default.nix
@@ -103,11 +103,5 @@ buildPythonPackage rec {
     homepage = "https://scipp.github.io";
     license = lib.licenses.bsd3;
     maintainers = with lib.maintainers; [ doronbehar ];
-    # Got:
-    #
-    #   error: a template argument list is expected after a name prefixed by the template keyword [-Wmissing-template-arg-list-after-template-kw]
-    #
-    # Needs debugging along with upstream.
-    broken = stdenv.hostPlatform.isDarwin;
   };
 }