diff --git a/frontend/src/components/libraries.js b/frontend/src/components/libraries.js
index cc8d47f..94d24be 100644
--- a/frontend/src/components/libraries.js
+++ b/frontend/src/components/libraries.js
@@ -73,6 +73,15 @@ const libraryList = [
     sign: true,
     verify: true
   },
+  {
+    language: 'Ruby',
+    maintainer: 'Joel Larsson',
+    repo: 'https://github.com/bolmaster2/http-signature',
+    request: true,
+    response: true,
+    sign: true,
+    verify: true
+  },
   {
     language: 'NodeJS',
     maintainer: 'Misskey Project',