diff --git a/lib/docs/scrapers/electron.rb b/lib/docs/scrapers/electron.rb
index 76d5a1703c..f81f7eedd7 100644
--- a/lib/docs/scrapers/electron.rb
+++ b/lib/docs/scrapers/electron.rb
@@ -26,8 +26,7 @@ class Electron < UrlScraper
     HTML
 
     def get_latest_version(opts)
-      doc = fetch_doc('https://www.electronjs.org/releases/stable', opts)
-      doc.at_css('.release-card__metadata>a')['href'].gsub!(/[a-zA-Z\/:]/, '')[1..-1]
+      get_latest_github_release('electron', 'electron', opts)
     end
   end
 end
diff --git a/lib/docs/scrapers/nix.rb b/lib/docs/scrapers/nix.rb
index b2ee5c8798..31deb9141b 100644
--- a/lib/docs/scrapers/nix.rb
+++ b/lib/docs/scrapers/nix.rb
@@ -23,7 +23,7 @@ class Nix < UrlScraper
 
     def get_latest_version(opts)
       doc = fetch_doc('https://nixos.org/manual/nix/stable/', opts)
-      doc.at_css('a.active')['href'].scan(/([0-9.]+)/)[0][0]
+      doc.at_css('h1.menu-title').content.scan(/([0-9.]+)/).first.first
     end
   end
 end
diff --git a/lib/docs/scrapers/redis.rb b/lib/docs/scrapers/redis.rb
index 9c8e03b19b..9c7cc12333 100644
--- a/lib/docs/scrapers/redis.rb
+++ b/lib/docs/scrapers/redis.rb
@@ -21,8 +21,7 @@ class Redis < UrlScraper
     HTML
 
     def get_latest_version(opts)
-      body = fetch('http://download.redis.io/redis-stable/00-RELEASENOTES', opts)
-      body.scan(/Redis Community Edition ([0-9.]+)/)[0][0]
+      get_latest_github_release('redis', 'redis', opts)
     end
 
     private