diff --git a/pkgs/development/node-packages/aliases.nix b/pkgs/development/node-packages/aliases.nix
index e459f0a1410e..b193db3e46c8 100644
--- a/pkgs/development/node-packages/aliases.nix
+++ b/pkgs/development/node-packages/aliases.nix
@@ -245,6 +245,7 @@ mapAliases {
   musescore-downloader = pkgs.dl-librescore; # added 2023-08-19
   near-cli = throw "'near-cli' has been removed as upstream has deprecated it and archived the source code repo"; # Added 2025-11-10
   neovim = pkgs.neovim-node-client; # added 2024-11-13
+  nijs = throw "'nijs' has been removed as it was unmaintained upstream"; # Added 2025-11-14
   node-inspector = throw "node-inspector was removed because it was broken"; # added 2023-08-21
   inherit (pkgs) node-gyp; # added 2024-08-13
   inherit (pkgs) node-pre-gyp; # added 2024-08-05
diff --git a/pkgs/development/node-packages/node-packages.json b/pkgs/development/node-packages/node-packages.json
index 5ca3b748b590..0561c8dc93da 100644
--- a/pkgs/development/node-packages/node-packages.json
+++ b/pkgs/development/node-packages/node-packages.json
@@ -27,7 +27,6 @@
 , "jsdoc"
 , "lcov-result-merger"
 , "mathjax"
-, "nijs"
 , "node-gyp-build"
 , "node2nix"
 , "np"
diff --git a/pkgs/development/node-packages/node-packages.nix b/pkgs/development/node-packages/node-packages.nix
index 7a6c90456dca..9af736f794cc 100644
--- a/pkgs/development/node-packages/node-packages.nix
+++ b/pkgs/development/node-packages/node-packages.nix
@@ -29740,28 +29740,6 @@ in
     bypassCache = true;
     reconstructLock = true;
   };
-  nijs = nodeEnv.buildNodePackage {
-    name = "nijs";
-    packageName = "nijs";
-    version = "0.0.25";
-    src = fetchurl {
-      url = "https://registry.npmjs.org/nijs/-/nijs-0.0.25.tgz";
-      sha512 = "uMpozOyrni5Tvj3O87pz1AYPrcoaGhs7jUWcv4ZII2BB4mHgoDcN3Tgn/1ezarfsxj1KiPU+TPn2M7XAcvA43g==";
-    };
-    dependencies = [
-      sources."optparse-1.0.5"
-      sources."slasp-0.0.4"
-    ];
-    buildInputs = globalBuildInputs;
-    meta = {
-      description = "An internal DSL for the Nix package manager in JavaScript";
-      homepage = "https://github.com/svanderburg/nijs#readme";
-      license = "MIT";
-    };
-    production = true;
-    bypassCache = true;
-    reconstructLock = true;
-  };
   node-gyp-build = nodeEnv.buildNodePackage {
     name = "node-gyp-build";
     packageName = "node-gyp-build";