diff --git a/Cargo.lock b/Cargo.lock
index 7afe4f544..d90659660 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -16,17 +16,17 @@ checksum = "8f27d075294830fcab6f66e320dab524bc6d048f4a151698e153205559113772"
 
 [[package]]
 name = "activitypub_federation"
-version = "0.5.4"
+version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6e16130d5914e6483f99bde5a9bb97ca62e1f359e0b9791c8ebd5c7abd50fe8e"
+checksum = "e54fe65c4a4b57712d8e436f1fb86ff37e10b56f011f4233fbbfa8c669163e9d"
 dependencies = [
  "activitystreams-kinds",
  "actix-web",
  "async-trait",
- "base64 0.21.7",
+ "base64 0.22.1",
  "bytes",
  "chrono",
- "derive_builder",
+ "derive_builder 0.20.0",
  "dyn-clone",
  "enum_delegate",
  "futures",
@@ -421,47 +421,48 @@ dependencies = [
 
 [[package]]
 name = "anstream"
-version = "0.6.13"
+version = "0.6.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d96bd03f33fe50a863e394ee9718a706f988b9079b20c3784fb726e7678b62fb"
+checksum = "418c75fa768af9c03be99d17643f93f79bbba589895012a80e3452a19ddda15b"
 dependencies = [
  "anstyle",
  "anstyle-parse",
  "anstyle-query",
  "anstyle-wincon",
  "colorchoice",
+ "is_terminal_polyfill",
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle"
-version = "1.0.6"
+version = "1.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8901269c6307e8d93993578286ac0edf7f195079ffff5ebdeea6a59ffb7e36bc"
+checksum = "038dfcf04a5feb68e9c60b21c9625a54c2c0616e79b72b0fd87075a056ae1d1b"
 
 [[package]]
 name = "anstyle-parse"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c75ac65da39e5fe5ab759307499ddad880d724eed2f6ce5b5e8a26f4f387928c"
+checksum = "c03a11a9034d92058ceb6ee011ce58af4a9bf61491aa7e1e59ecd24bd40d22d4"
 dependencies = [
  "utf8parse",
 ]
 
 [[package]]
 name = "anstyle-query"
-version = "1.0.2"
+version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e28923312444cdd728e4738b3f9c9cac739500909bb3d3c94b43551b16517648"
+checksum = "a64c907d4e79225ac72e2a354c9ce84d50ebb4586dee56c82b3ee73004f537f5"
 dependencies = [
  "windows-sys 0.52.0",
 ]
 
 [[package]]
 name = "anstyle-wincon"
-version = "3.0.2"
+version = "3.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1cd54b81ec8d6180e24654d0b371ad22fc3dd083b6ff8ba325b72e00c87660a7"
+checksum = "61a38449feb7068f52bb06c12759005cf459ee52bb4adc1d5a7c4322d716fb19"
 dependencies = [
  "anstyle",
  "windows-sys 0.52.0",
@@ -556,7 +557,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "571832dcff775e26562e8e6930cd483de5587301d40d3a3b85d532b6383e15a7"
 dependencies = [
  "chrono",
- "derive_builder",
+ "derive_builder 0.12.0",
  "diligent-date-parser",
  "never",
  "quick-xml 0.30.0",
@@ -1059,9 +1060,9 @@ checksum = "3d7b894f5411737b7867f4827955924d7c254fc9f4d91a6aad6b097804b1018b"
 
 [[package]]
 name = "colorchoice"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "acbf1af155f9b9ef647e42cdc158db4b64a1b61f743629225fde6f3e0be2a7c7"
+checksum = "0b6a852b24ab71dffc585bcb46eaf7959d175cb865a7152e35b348d1b2960422"
 
 [[package]]
 name = "combine"
@@ -1477,7 +1478,16 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d67778784b508018359cbc8696edb3db78160bab2c2a28ba7f56ef6932997f8"
 dependencies = [
- "derive_builder_macro",
+ "derive_builder_macro 0.12.0",
+]
+
+[[package]]
+name = "derive_builder"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0350b5cb0331628a5916d6c5c0b72e97393b8b6b03b47a9284f4e7f5a405ffd7"
+dependencies = [
+ "derive_builder_macro 0.20.0",
 ]
 
 [[package]]
@@ -1492,16 +1502,38 @@ dependencies = [
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "derive_builder_core"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d48cda787f839151732d396ac69e3473923d54312c070ee21e9effcaa8ca0b1d"
+dependencies = [
+ "darling 0.20.8",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.60",
+]
+
 [[package]]
 name = "derive_builder_macro"
 version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ebcda35c7a396850a55ffeac740804b40ffec779b98fffbb1738f4033f0ee79e"
 dependencies = [
- "derive_builder_core",
+ "derive_builder_core 0.12.0",
  "syn 1.0.109",
 ]
 
+[[package]]
+name = "derive_builder_macro"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "206868b8242f27cecce124c19fd88157fbd0dd334df2587f36417bafbc85097b"
+dependencies = [
+ "derive_builder_core 0.20.0",
+ "syn 2.0.60",
+]
+
 [[package]]
 name = "derive_more"
 version = "0.99.17"
@@ -2593,6 +2625,12 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
 
+[[package]]
+name = "is_terminal_polyfill"
+version = "1.70.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f8478577c03552c21db0e2724ffb8986a5ce7af88107e6be5d2ee6e158c12800"
+
 [[package]]
 name = "itertools"
 version = "0.10.5"
@@ -4651,7 +4689,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f7b2c77eb4450d7d5f98df52c381cd6c4e19b75dad9209a9530b85a44510219a"
 dependencies = [
  "atom_syndication",
- "derive_builder",
+ "derive_builder 0.12.0",
  "never",
  "quick-xml 0.30.0",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 0cf90cc62..aec09093d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -99,7 +99,7 @@ lemmy_db_views = { version = "=0.19.4-beta.6", path = "./crates/db_views" }
 lemmy_db_views_actor = { version = "=0.19.4-beta.6", path = "./crates/db_views_actor" }
 lemmy_db_views_moderator = { version = "=0.19.4-beta.6", path = "./crates/db_views_moderator" }
 lemmy_federate = { version = "=0.19.4-beta.6", path = "./crates/federate" }
-activitypub_federation = { version = "0.5.4", default-features = false, features = [
+activitypub_federation = { version = "0.5.5", default-features = false, features = [
   "actix-web",
 ] }
 diesel = "2.1.6"
diff --git a/crates/apub/assets/discourse/objects/group.json b/crates/apub/assets/discourse/objects/group.json
new file mode 100644
index 000000000..5ed2c8c05
--- /dev/null
+++ b/crates/apub/assets/discourse/objects/group.json
@@ -0,0 +1,22 @@
+{
+  "id": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146",
+  "type": "Group",
+  "updated": "2024-04-05T12:49:51Z",
+  "url": "https://socialhub.activitypub.rocks/c/meeting/threadiverse-wg/88",
+  "name": "Threadiverse Working Group (SocialHub)",
+  "inbox": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146/inbox",
+  "outbox": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146/outbox",
+  "followers": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146/followers",
+  "preferredUsername": "threadiverse-wg",
+  "publicKey": {
+    "id": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146#main-key",
+    "owner": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146",
+    "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApJi4iAcW6bPiHVCxT9p0\n8DVnrDDO4QtLNy7bpRFdMFifmmmXprsuAi9D2MSwbhH49V54HtIkxBpKd2IR/UD8\nmhMDY4CNI9FHpjqLw0wtkzxcqF9urSqhn0/vWX+9oxyhIgQS5KMiIkYDMJiAc691\niEcZ8LCran23xIGl6Dk54Nr3TqTMLcjDhzQYUJbxMrLq5/knWqOKG3IF5OxK+9ZZ\n1wxDF872eJTxJLkmpag+WYNtHzvB2SGTp8j5IF1/pZ9J1c3cpYfaeolTch/B/GQn\najCB4l27U52rIIObxJqFXSY8wHyd0aAmNmxzPZ7cduRlBDhmI40cAmnCV1YQPvpk\nDwIDAQAB\n-----END PUBLIC KEY-----\n"
+  },
+  "icon": {
+    "type": "Image",
+    "mediaType": "image/png",
+    "url": "https://socialhub.activitypub.rocks/uploads/default/original/1X/8faac84234dc73d074dadaa2bcf24dc746b8647f.png"
+  },
+  "@context": "https://www.w3.org/ns/activitystreams"
+}
diff --git a/crates/apub/assets/discourse/objects/page.json b/crates/apub/assets/discourse/objects/page.json
new file mode 100644
index 000000000..c020ce9f5
--- /dev/null
+++ b/crates/apub/assets/discourse/objects/page.json
@@ -0,0 +1,13 @@
+{
+  "id": "https://socialhub.activitypub.rocks/ap/object/1899f65c062200daec50a4c89ed76dc9",
+  "type": "Note",
+  "audience": "https://socialhub.activitypub.rocks/ap/actor/797217cf18c0e819dfafc52425590146",
+  "published": "2024-04-13T14:36:19Z",
+  "updated": "2024-04-13T14:36:19Z",
+  "url": "https://socialhub.activitypub.rocks/t/our-next-meeting/4079/1",
+  "attributedTo": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1",
+  "name": "Our next meeting",
+  "context": "https://socialhub.activitypub.rocks/ap/collection/8850f6e85b57c490da915a5dfbbd5045",
+  "content": "<h3>Last Meeting</h3>\n<h4>Recording</h4>\n<a href=\"https://us06web.zoom.us/rec/share/4hGBTvgXJPlu8UkjkkxVARypNg5DH0eeaKlIBv71D4G3lokYyrCrg7cqBCJmL109.FsHYTZDlVvZXrgcn?startTime=1712254114000\">https://us06web.zoom.us/rec/share/4hGBTvgXJPlu8UkjkkxVARypNg5DH0eeaKlIBv71D4G3lokYyrCrg7cqBCJmL109.FsHYTZDlVvZXrgcn?startTime=1712254114000</a>\nPasscode: z+1*4pUB\n<h4>Minutes</h4>\nTo refresh your memory, you can read the minutes of last week's meeting <a href=\"https://community.nodebb.org/topic/17949/minutes&hellip;",
+  "@context": "https://www.w3.org/ns/activitystreams"
+}
diff --git a/crates/apub/assets/discourse/objects/person.json b/crates/apub/assets/discourse/objects/person.json
new file mode 100644
index 000000000..52a21d4f0
--- /dev/null
+++ b/crates/apub/assets/discourse/objects/person.json
@@ -0,0 +1,23 @@
+{
+  "id": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1",
+  "type": "Person",
+  "updated": "2024-01-15T12:27:03Z",
+  "url": "https://socialhub.activitypub.rocks/u/angus",
+  "name": "Angus McLeod",
+  "inbox": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1/inbox",
+  "outbox": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1/outbox",
+  "sharedInbox": "https://socialhub.activitypub.rocks/ap/users/inbox",
+  "followers": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1/followers",
+  "preferredUsername": "angus",
+  "publicKey": {
+    "id": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1#main-key",
+    "owner": "https://socialhub.activitypub.rocks/ap/actor/495843076e9e469fbd35ccf467ae9fb1",
+    "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3RpuFDuwXZzOeHO5fO2O\nHmP7Flc5JDXJ8OOEJYq5T/dzUKqREOF1ZT0WMww8/E3P6w+gfFsjzThraJb8nHuW\nP6798SUD35CWBclfhw9DapjVn99JyFcAWcH3b9fr6LYshc4y1BoeJagk1kcro2Dc\n+pX0vVXgNjwWnGfyucAgGIUWrNUjcvIvXmyVCBSQfXG3nCALV1JbI4KSgf/5KyBn\nza/QefaetxYiFV8wAisPKLsz3XQAaITsQmbSi+8gmwXt/9U808PK1KphCiClDOWg\noi0HPzJn0rn+mwFCfgNWenvribfeG40AHLG33OkWKvslufjifdWDCOcBYYzyCEV6\n+wIDAQAB\n-----END PUBLIC KEY-----\n"
+  },
+  "icon": {
+    "type": "Image",
+    "mediaType": "image/png",
+    "url": "https://socialhub.activitypub.rocks/user_avatar/socialhub.activitypub.rocks/angus/96/2295_2.png"
+  },
+  "@context": "https://www.w3.org/ns/activitystreams"
+}
diff --git a/crates/apub/src/protocol/objects/mod.rs b/crates/apub/src/protocol/objects/mod.rs
index 77d173f30..d8b471a6d 100644
--- a/crates/apub/src/protocol/objects/mod.rs
+++ b/crates/apub/src/protocol/objects/mod.rs
@@ -191,6 +191,14 @@ mod tests {
     Ok(())
   }
 
+  #[test]
+  fn test_parse_object_discourse() -> LemmyResult<()> {
+    test_json::<Group>("assets/discourse/objects/group.json")?;
+    test_json::<Page>("assets/discourse/objects/page.json")?;
+    test_json::<Person>("assets/discourse/objects/person.json")?;
+    Ok(())
+  }
+
   #[test]
   fn test_parse_object_nodebb() -> LemmyResult<()> {
     test_json::<Group>("assets/nodebb/objects/group.json")?;
diff --git a/crates/apub/src/protocol/objects/page.rs b/crates/apub/src/protocol/objects/page.rs
index acfd8f5fd..4d70744cf 100644
--- a/crates/apub/src/protocol/objects/page.rs
+++ b/crates/apub/src/protocol/objects/page.rs
@@ -42,7 +42,7 @@ pub struct Page {
   pub(crate) kind: PageType,
   pub(crate) id: ObjectId<ApubPost>,
   pub(crate) attributed_to: AttributedTo,
-  #[serde(deserialize_with = "deserialize_one_or_many")]
+  #[serde(deserialize_with = "deserialize_one_or_many", default)]
   pub(crate) to: Vec<Url>,
   // If there is inReplyTo field this is actually a comment and must not be parsed
   #[serde(deserialize_with = "deserialize_not_present", default)]