diff --git a/_data/simple-icons.json b/_data/simple-icons.json
index b50a9a58e..2d6b34565 100644
--- a/_data/simple-icons.json
+++ b/_data/simple-icons.json
@@ -5726,7 +5726,8 @@
         {
             "title": "Hack Club",
             "hex": "EC3750",
-            "source": "https://hackclub.com/brand"
+            "source": "https://hackclub.com/brand",
+            "guidelines": "https://hackclub.com/brand"
         },
         {
             "title": "Hack The Box",
@@ -5752,7 +5753,8 @@
         {
             "title": "HackerOne",
             "hex": "494649",
-            "source": "https://www.hackerone.com/branding"
+            "source": "https://www.hackerone.com/branding",
+            "guidelines": "https://www.hackerone.com/branding/pages#logo_usage"
         },
         {
             "title": "HackerRank",
@@ -5774,7 +5776,7 @@
         {
             "title": "Handlebars.js",
             "hex": "000000",
-            "source": "https://raw.githubusercontent.com/handlebars-lang/docs/master/src/.vuepress/public/icons/handlebarsjs-icon.svg"
+            "source": "https://github.com/handlebars-lang/docs/blob/13a2e2d9e31ebff4295924ea366abf3062e47ede/src/.vuepress/public/icons/handlebarsjs-icon.svg"
         },
         {
             "title": "Handshake",
@@ -5921,8 +5923,8 @@
         {
             "title": "Heroku",
             "hex": "430098",
-            "source": "https://brand.heroku.com",
-            "guidelines": "https://brand.heroku.com"
+            "source": "https://devcenter.heroku.com/articles/heroku-brand-guidelines#logos",
+            "guidelines": "https://devcenter.heroku.com/articles/heroku-brand-guidelines"
         },
         {
             "title": "Hetzner",
@@ -5983,7 +5985,7 @@
             "title": "Hive",
             "slug": "hive_blockchain",
             "hex": "E31337",
-            "source": "https://hive.io/brand/"
+            "source": "https://hive.io/brand"
         },
         {
             "title": "Home Assistant",