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+---
+title: Nix pinning
+date: 2018-07-11
+layout: pastebin
+lang: en
+---
+
+```nix
+let
+  # Pin the nixpkgs version
+  stdenv = pkgs.stdenv;
+  pkgsOriginal = import <nixpkgs> {};
+  pkgsSrc = pkgsOriginal.fetchzip {
+    url = "https://github.com/NixOS/nixpkgs/archive/18.03.zip";
+    sha256 = "0hk4y2vkgm1qadpsm4b0q1vxq889jhxzjx3ragybrlwwg54mzp4f";
+  };
+
+  pkgs = import (pkgsSrc) {};
+
+  buildNodeJS = pkgs.callPackage <nixpkgs/pkgs/development/web/nodejs/nodejs.nix> {};
+
+in rec {
+  nodeFromNVMRC = buildNodeJS {
+    version = "8.7.0";
+    sha256 = "16mml3cwjnq7yf9yd67d2dybav3nvbnk89fkixs1wz7fd26d05ss";
+    patches = [];
+  };
+}
+```