diff --git a/pkgs/applications/editors/vim/plugins/utils/updater.nix b/pkgs/applications/editors/vim/plugins/utils/updater.nix
index 82cbb7a923ba..2ed61a25c83a 100644
--- a/pkgs/applications/editors/vim/plugins/utils/updater.nix
+++ b/pkgs/applications/editors/vim/plugins/utils/updater.nix
@@ -3,6 +3,7 @@
   buildPythonApplication,
   makeWrapper,
   nix,
+  nix-prefetch-github,
   nix-prefetch-git,
   nurl,
   python3Packages,
@@ -37,6 +38,7 @@ buildPythonApplication {
     makeWrapperArgs+=( --prefix PATH : "${
       lib.makeBinPath [
         nix
+        nix-prefetch-github
         nix-prefetch-git
         neovim-unwrapped
         nurl
diff --git a/pkgs/development/python-modules/nixpkgs-plugin-update/nixpkgs-plugin-update/src/nixpkgs_plugin_update/__init__.py b/pkgs/development/python-modules/nixpkgs-plugin-update/nixpkgs-plugin-update/src/nixpkgs_plugin_update/__init__.py
index 1a54775d1dd2..154c0190455f 100644
--- a/pkgs/development/python-modules/nixpkgs-plugin-update/nixpkgs-plugin-update/src/nixpkgs_plugin_update/__init__.py
+++ b/pkgs/development/python-modules/nixpkgs-plugin-update/nixpkgs-plugin-update/src/nixpkgs_plugin_update/__init__.py
@@ -16,7 +16,6 @@ import sys
 import time
 import traceback
 import urllib.error
-import urllib.parse
 import urllib.request
 import xml.etree.ElementTree as ET
 from dataclasses import asdict, dataclass
@@ -26,7 +25,7 @@ from multiprocessing.dummy import Pool
 from pathlib import Path
 from tempfile import NamedTemporaryFile
 from typing import Any, Callable
-from urllib.parse import urljoin, urlparse
+from urllib.parse import urljoin, urlparse, urlsplit
 
 import git
 from packaging.version import InvalidVersion, parse as parse_version
@@ -407,7 +406,7 @@ class RepoGitHub(Repo):
         response_url = req.geturl()
         if url != response_url:
             new_owner, new_name = (
-                urllib.parse.urlsplit(response_url).path.strip("/").split("/")[:2]
+                urlsplit(response_url).path.strip("/").split("/")[:2]
             )
 
             new_repo = RepoGitHub(owner=new_owner, repo=new_name, branch=self.branch)
@@ -421,10 +420,11 @@ class RepoGitHub(Repo):
         return sha256
 
     def prefetch_github(self, ref: str) -> str:
-        cmd = ["nix-prefetch-url", "--unpack", self.url(f"archive/{ref}.tar.gz")]
+        cmd = ["nix-prefetch-github", self.owner, self.repo, "--rev", ref, "--json"]
         log.debug("Running %s", cmd)
         data = subprocess.check_output(cmd)
-        return data.strip().decode("utf-8")
+        loaded = json.loads(data)
+        return loaded["hash"]
 
     def as_nix(self, plugin: "Plugin") -> str:
         if plugin.has_submodules: