diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex
index 0fcc81bf3..225c34875 100644
--- a/lib/pleroma/web/activity_pub/transmogrifier.ex
+++ b/lib/pleroma/web/activity_pub/transmogrifier.ex
@@ -598,11 +598,13 @@ def handle_incoming(
 
       banner = new_user_data[:info][:banner]
       locked = new_user_data[:info][:locked] || false
+      attachment = get_in(new_user_data, [:info, "source_data", "attachment"])
 
       update_data =
         new_user_data
         |> Map.take([:name, :bio, :avatar])
         |> Map.put(:info, %{banner: banner, locked: locked})
+        |> Map.put(:info, %{"banner" => banner, "locked" => locked, "source_data" => source_data})
 
       actor
       |> User.upgrade_changeset(update_data)
diff --git a/test/fixtures/mastodon-update.json b/test/fixtures/mastodon-update.json
index f6713fea5..dbf8b6dff 100644
--- a/test/fixtures/mastodon-update.json
+++ b/test/fixtures/mastodon-update.json
@@ -1,10 +1,10 @@
-{                                                                               
-  "type": "Update",                                                                    
-  "object": {                                                                          
-    "url": "http://mastodon.example.org/@gargron",                                     
-    "type": "Person",                                                                  
-    "summary": "<p>Some bio</p>",                                                              
-    "publicKey": {                                                                     
+{
+  "type": "Update",
+  "object": {
+    "url": "http://mastodon.example.org/@gargron",
+    "type": "Person",
+    "summary": "<p>Some bio</p>",
+    "publicKey": {
       "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0gs3VnQf6am3R+CeBV4H\nlfI1HZTNRIBHgvFszRZkCERbRgEWMu+P+I6/7GJC5H5jhVQ60z4MmXcyHOGmYMK/\n5XyuHQz7V2Ssu1AxLfRN5Biq1ayb0+DT/E7QxNXDJPqSTnstZ6C7zKH/uAETqg3l\nBonjCQWyds+IYbQYxf5Sp3yhvQ80lMwHML3DaNCMlXWLoOnrOX5/yK5+dedesg2\n/HIvGk+HEt36vm6hoH7bwPuEkgA++ACqwjXRe5Mta7i3eilHxFaF8XIrJFARV0t\nqOu4GID/jG6oA+swIWndGrtR2QRJIt9QIBFfK3HG5M0koZbY1eTqwNFRHFL3xaD\nUQIDAQAB\n-----END PUBLIC KEY-----\n",
       "owner": "http://mastodon.example.org/users/gargron",
       "id": "http://mastodon.example.org/users/gargron#main-key"
@@ -20,7 +20,27 @@
     "endpoints": {
       "sharedInbox": "http://mastodon.example.org/inbox"
     },
-    "icon":{"type":"Image","mediaType":"image/jpeg","url":"https://cd.niu.moe/accounts/avatars/000/033/323/original/fd7f8ae0b3ffedc9.jpeg"},"image":{"type":"Image","mediaType":"image/png","url":"https://cd.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png"}
+    "attachment": [{
+        "type": "PropertyValue",
+        "name": "foo",
+        "value": "updated"
+      },
+      {
+        "type": "PropertyValue",
+        "name": "foo1",
+        "value": "updated"
+      }
+    ],
+    "icon": {
+      "type": "Image",
+      "mediaType": "image/jpeg",
+      "url": "https://cd.niu.moe/accounts/avatars/000/033/323/original/fd7f8ae0b3ffedc9.jpeg"
+    },
+    "image": {
+      "type": "Image",
+      "mediaType": "image/png",
+      "url": "https://cd.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png"
+    }
   },
   "id": "http://mastodon.example.org/users/gargron#updates/1519563538",
   "actor": "http://mastodon.example.org/users/gargron",
diff --git a/test/fixtures/tesla_mock/admin@mastdon.example.org.json b/test/fixtures/tesla_mock/admin@mastdon.example.org.json
index c297e4349..8159dc20a 100644
--- a/test/fixtures/tesla_mock/admin@mastdon.example.org.json
+++ b/test/fixtures/tesla_mock/admin@mastdon.example.org.json
@@ -1 +1,54 @@
-{"@context":["https://www.w3.org/ns/activitystreams","https://w3id.org/security/v1",{"manuallyApprovesFollowers":"as:manuallyApprovesFollowers","sensitive":"as:sensitive","movedTo":"as:movedTo","Hashtag":"as:Hashtag","ostatus":"http://ostatus.org#","atomUri":"ostatus:atomUri","inReplyToAtomUri":"ostatus:inReplyToAtomUri","conversation":"ostatus:conversation","toot":"http://joinmastodon.org/ns#","Emoji":"toot:Emoji"}],"id":"http://mastodon.example.org/users/admin","type":"Person","following":"http://mastodon.example.org/users/admin/following","followers":"http://mastodon.example.org/users/admin/followers","inbox":"http://mastodon.example.org/users/admin/inbox","outbox":"http://mastodon.example.org/users/admin/outbox","preferredUsername":"admin","name":null,"summary":"\u003cp\u003e\u003c/p\u003e","url":"http://mastodon.example.org/@admin","manuallyApprovesFollowers":false,"publicKey":{"id":"http://mastodon.example.org/users/admin#main-key","owner":"http://mastodon.example.org/users/admin","publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtc4Tir+3ADhSNF6VKrtW\nOU32T01w7V0yshmQei38YyiVwVvFu8XOP6ACchkdxbJ+C9mZud8qWaRJKVbFTMUG\nNX4+6Q+FobyuKrwN7CEwhDALZtaN2IPbaPd6uG1B7QhWorrY+yFa8f2TBM3BxnUy\nI4T+bMIZIEYG7KtljCBoQXuTQmGtuffO0UwJksidg2ffCF5Q+K//JfQagJ3UzrR+\nZXbKMJdAw4bCVJYs4Z5EhHYBwQWiXCyMGTd7BGlmMkY6Av7ZqHKC/owp3/0EWDNz\nNqF09Wcpr3y3e8nA10X40MJqp/wR+1xtxp+YGbq/Cj5hZGBG7etFOmIpVBrDOhry\nBwIDAQAB\n-----END PUBLIC KEY-----\n"},"endpoints":{"sharedInbox":"http://mastodon.example.org/inbox"},"icon":{"type":"Image","mediaType":"image/jpeg","url":"https://cdn.niu.moe/accounts/avatars/000/033/323/original/fd7f8ae0b3ffedc9.jpeg"},"image":{"type":"Image","mediaType":"image/png","url":"https://cdn.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png"}}
+{
+  "@context": ["https://www.w3.org/ns/activitystreams", "https://w3id.org/security/v1", {
+    "manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
+    "sensitive": "as:sensitive",
+    "movedTo": "as:movedTo",
+    "Hashtag": "as:Hashtag",
+    "ostatus": "http://ostatus.org#",
+    "atomUri": "ostatus:atomUri",
+    "inReplyToAtomUri": "ostatus:inReplyToAtomUri",
+    "conversation": "ostatus:conversation",
+    "toot": "http://joinmastodon.org/ns#",
+    "Emoji": "toot:Emoji"
+  }],
+  "id": "http://mastodon.example.org/users/admin",
+  "type": "Person",
+  "following": "http://mastodon.example.org/users/admin/following",
+  "followers": "http://mastodon.example.org/users/admin/followers",
+  "inbox": "http://mastodon.example.org/users/admin/inbox",
+  "outbox": "http://mastodon.example.org/users/admin/outbox",
+  "preferredUsername": "admin",
+  "name": null,
+  "summary": "\u003cp\u003e\u003c/p\u003e",
+  "url": "http://mastodon.example.org/@admin",
+  "manuallyApprovesFollowers": false,
+  "publicKey": {
+    "id": "http://mastodon.example.org/users/admin#main-key",
+    "owner": "http://mastodon.example.org/users/admin",
+    "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtc4Tir+3ADhSNF6VKrtW\nOU32T01w7V0yshmQei38YyiVwVvFu8XOP6ACchkdxbJ+C9mZud8qWaRJKVbFTMUG\nNX4+6Q+FobyuKrwN7CEwhDALZtaN2IPbaPd6uG1B7QhWorrY+yFa8f2TBM3BxnUy\nI4T+bMIZIEYG7KtljCBoQXuTQmGtuffO0UwJksidg2ffCF5Q+K//JfQagJ3UzrR+\nZXbKMJdAw4bCVJYs4Z5EhHYBwQWiXCyMGTd7BGlmMkY6Av7ZqHKC/owp3/0EWDNz\nNqF09Wcpr3y3e8nA10X40MJqp/wR+1xtxp+YGbq/Cj5hZGBG7etFOmIpVBrDOhry\nBwIDAQAB\n-----END PUBLIC KEY-----\n"
+  },
+  "attachment": [{
+      "type": "PropertyValue",
+      "name": "foo",
+      "value": "bar"
+    },
+    {
+      "type": "PropertyValue",
+      "name": "foo1",
+      "value": "bar1"
+    }
+  ],
+  "endpoints": {
+    "sharedInbox": "http://mastodon.example.org/inbox"
+  },
+  "icon": {
+    "type": "Image",
+    "mediaType": "image/jpeg",
+    "url": "https://cdn.niu.moe/accounts/avatars/000/033/323/original/fd7f8ae0b3ffedc9.jpeg"
+  },
+  "image": {
+    "type": "Image",
+    "mediaType": "image/png",
+    "url": "https://cdn.niu.moe/accounts/headers/000/033/323/original/850b3448fa5fd477.png"
+  }
+}
diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index 060b91e29..05ec09ec1 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/test/web/activity_pub/transmogrifier_test.exs
@@ -509,6 +509,42 @@ test "it works for incoming update activities" do
       assert user.bio == "<p>Some bio</p>"
     end
 
+    test "it works with custom profile fields" do
+      {:ok, activity} =
+        "test/fixtures/mastodon-post-activity.json"
+        |> File.read!()
+        |> Poison.decode!()
+        |> Transmogrifier.handle_incoming()
+
+      user = User.get_cached_by_ap_id(activity.actor)
+
+      assert user.info.source_data["attachment"] == [
+               %{"name" => "foo", "type" => "PropertyValue", "value" => "bar"},
+               %{"name" => "foo1", "type" => "PropertyValue", "value" => "bar1"}
+             ]
+
+      update_data = File.read!("test/fixtures/mastodon-update.json") |> Poison.decode!()
+
+      object =
+        update_data["object"]
+        |> Map.put("actor", user.ap_id)
+        |> Map.put("id", user.ap_id)
+
+      update_data =
+        update_data
+        |> Map.put("actor", user.ap_id)
+        |> Map.put("object", object)
+
+      {:ok, _update_activity} = Transmogrifier.handle_incoming(update_data)
+
+      user = User.get_cached_by_ap_id(user.ap_id)
+
+      assert user.info.source_data["attachment"] == [
+               %{"name" => "foo", "type" => "PropertyValue", "value" => "updated"},
+               %{"name" => "foo1", "type" => "PropertyValue", "value" => "updated"}
+             ]
+    end
+
     test "it works for incoming update activities which lock the account" do
       data = File.read!("test/fixtures/mastodon-post-activity.json") |> Poison.decode!()