diff --git a/extensions.json b/extensions.json
index beef0b93..48918bc8 100644
--- a/extensions.json
+++ b/extensions.json
@@ -84,6 +84,16 @@
             "archive": "https://git.atitlan.io/aiolabs/castle/archive/v0.0.2.zip",
             "hash": "0653b7dbfa37da023c7f4fe976441fd6bef0d56fe6d08eb4ce6d4ec178632f4a"
         },
+        {
+            "id": "castle",
+            "repo": "https://git.atitlan.io/aiolabs/castle",
+            "name": "Castle",
+            "version": "0.0.3",
+            "short_description": "Castle Accounting",
+            "icon": "https://git.atitlan.io/aiolabs/castle/raw/branch/main/static/image/castle.png",
+            "archive": "https://git.atitlan.io/aiolabs/castle/archive/v0.0.3.zip",
+            "hash": "b9640dbeec00274d8382b6d9e3b4250f356f002c047c8e380ff9acecb2058f39"
+        },
         {
             "id": "lnurlp",
             "repo": "https://github.com/lnbits/lnurlp",