diff --git a/src/data/contributors.json b/src/data/contributors.json
index ae9db06..74f2884 100644
--- a/src/data/contributors.json
+++ b/src/data/contributors.json
@@ -219,6 +219,26 @@
     "site_admin": false,
     "contributions": 1
   },
+  {
+    "login": "greenkeeperio-bot",
+    "id": 14790466,
+    "avatar_url": "https://avatars.githubusercontent.com/u/14790466?v=3",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/greenkeeperio-bot",
+    "html_url": "https://github.com/greenkeeperio-bot",
+    "followers_url": "https://api.github.com/users/greenkeeperio-bot/followers",
+    "following_url": "https://api.github.com/users/greenkeeperio-bot/following{/other_user}",
+    "gists_url": "https://api.github.com/users/greenkeeperio-bot/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/greenkeeperio-bot/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/greenkeeperio-bot/subscriptions",
+    "organizations_url": "https://api.github.com/users/greenkeeperio-bot/orgs",
+    "repos_url": "https://api.github.com/users/greenkeeperio-bot/repos",
+    "events_url": "https://api.github.com/users/greenkeeperio-bot/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/greenkeeperio-bot/received_events",
+    "type": "User",
+    "site_admin": false,
+    "contributions": 1
+  },
   {
     "login": "jmona789",
     "id": 13789757,
@@ -239,6 +259,26 @@
     "site_admin": false,
     "contributions": 1
   },
+  {
+    "login": "marcobiedermann",
+    "id": 5244986,
+    "avatar_url": "https://avatars.githubusercontent.com/u/5244986?v=3",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/marcobiedermann",
+    "html_url": "https://github.com/marcobiedermann",
+    "followers_url": "https://api.github.com/users/marcobiedermann/followers",
+    "following_url": "https://api.github.com/users/marcobiedermann/following{/other_user}",
+    "gists_url": "https://api.github.com/users/marcobiedermann/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/marcobiedermann/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/marcobiedermann/subscriptions",
+    "organizations_url": "https://api.github.com/users/marcobiedermann/orgs",
+    "repos_url": "https://api.github.com/users/marcobiedermann/repos",
+    "events_url": "https://api.github.com/users/marcobiedermann/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/marcobiedermann/received_events",
+    "type": "User",
+    "site_admin": false,
+    "contributions": 1
+  },
   {
     "login": "marthesselink",
     "id": 21331676,