diff --git a/internal/ap/extract_test.go b/internal/ap/extract_test.go
index b76717068..d78c3078d 100644
--- a/internal/ap/extract_test.go
+++ b/internal/ap/extract_test.go
@@ -154,7 +154,7 @@ func addressable4() vocab.ActivityStreamsAnnounce {
 	"cc": "https://another.instance/users/someone_else",
 	"id": "https://example.org/users/someone/statuses/107043888547829808/activity",
 	"object": "https://another.instance/users/someone_else/statuses/107026674805188668",
-	"published": "2021-10-04T15:08:35Z",
+	"published": "2021-10-04T15:08:35.00Z",
 	"to": "https://example.org/users/someone/followers",
 	"type": "Announce"
 }`)
diff --git a/internal/api/client/followrequest/get_test.go b/internal/api/client/followrequest/get_test.go
index c482c6932..63e4d0818 100644
--- a/internal/api/client/followrequest/get_test.go
+++ b/internal/api/client/followrequest/get_test.go
@@ -70,7 +70,7 @@ func (suite *GetTestSuite) TestGet() {
 	b, err := ioutil.ReadAll(result.Body)
 	assert.NoError(suite.T(), err)
 
-	suite.Equal(`[{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"some_user","acct":"some_user@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28Z","note":"i'm a real son of a gun","url":"http://example.org/@some_user","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":"","emojis":[],"fields":[]}]`, string(b))
+	suite.Equal(`[{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"some_user","acct":"some_user@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28.00Z","note":"i'm a real son of a gun","url":"http://example.org/@some_user","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":"","emojis":[],"fields":[]}]`, string(b))
 }
 
 func TestGetTestSuite(t *testing.T) {
diff --git a/internal/api/client/instance/instancepatch_test.go b/internal/api/client/instance/instancepatch_test.go
index 5577cbbcc..68243ded8 100644
--- a/internal/api/client/instance/instancepatch_test.go
+++ b/internal/api/client/instance/instancepatch_test.go
@@ -62,7 +62,7 @@ func (suite *InstancePatchTestSuite) TestInstancePatch1() {
 	b, err := io.ReadAll(result.Body)
 	suite.NoError(err)
 
-	suite.Equal(`{"uri":"http://localhost:8080","title":"Example Instance","description":"","short_description":"","email":"someone@example.org","version":"","registrations":true,"approval_required":true,"invites_enabled":false,"urls":{"streaming_api":"wss://localhost:8080"},"stats":{"domain_count":0,"status_count":16,"user_count":4},"thumbnail":"","contact_account":{"id":"01F8MH17FWEB39HZJ76B6VXSKF","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2022-05-17T13:10:59Z","note":"","url":"http://localhost:8080/@admin","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":1,"following_count":1,"statuses_count":4,"last_status_at":"2021-10-20T10:41:37Z","emojis":[],"fields":[]},"max_toot_chars":5000}`, string(b))
+	suite.Equal(`{"uri":"http://localhost:8080","title":"Example Instance","description":"","short_description":"","email":"someone@example.org","version":"","registrations":true,"approval_required":true,"invites_enabled":false,"urls":{"streaming_api":"wss://localhost:8080"},"stats":{"domain_count":0,"status_count":16,"user_count":4},"thumbnail":"","contact_account":{"id":"01F8MH17FWEB39HZJ76B6VXSKF","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2022-05-17T13:10:59.00Z","note":"","url":"http://localhost:8080/@admin","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":1,"following_count":1,"statuses_count":4,"last_status_at":"2021-10-20T10:41:37.00Z","emojis":[],"fields":[]},"max_toot_chars":5000}`, string(b))
 }
 
 func (suite *InstancePatchTestSuite) TestInstancePatch2() {
diff --git a/internal/api/model/attachment.go b/internal/api/model/attachment.go
index 061d7918e..3ab29d2fb 100644
--- a/internal/api/model/attachment.go
+++ b/internal/api/model/attachment.go
@@ -69,25 +69,25 @@ type Attachment struct {
 	// The location of the original full-size attachment.
 	// example: https://example.org/fileserver/some_id/attachments/some_id/original/attachment.jpeg
 	URL string `json:"url"`
+	// A shorter URL for the attachment.
+	// In our case, we just give the URL again since we don't create smaller URLs.
+	TextURL string `json:"text_url"`
 	// The location of a scaled-down preview of the attachment.
 	// example: https://example.org/fileserver/some_id/attachments/some_id/small/attachment.jpeg
 	PreviewURL string `json:"preview_url"`
 	// The location of the full-size original attachment on the remote server.
 	// Only defined for instances other than our own.
 	// example: https://some-other-server.org/attachments/original/ahhhhh.jpeg
-	RemoteURL string `json:"remote_url,omitempty"`
+	RemoteURL string `json:"remote_url"`
 	// The location of a scaled-down preview of the attachment on the remote server.
 	// Only defined for instances other than our own.
 	// example: https://some-other-server.org/attachments/small/ahhhhh.jpeg
-	PreviewRemoteURL string `json:"preview_remote_url,omitempty"`
-	// A shorter URL for the attachment.
-	// Not currently used.
-	TextURL string `json:"text_url,omitempty"`
+	PreviewRemoteURL string `json:"preview_remote_url"`
 	// Metadata for this attachment.
 	Meta MediaMeta `json:"meta,omitempty"`
 	// Alt text that describes what is in the media attachment.
 	// example: This is a picture of a kitten.
-	Description string `json:"description,omitempty"`
+	Description string `json:"description"`
 	// A hash computed by the BlurHash algorithm, for generating colorful preview thumbnails when media has not been downloaded yet.
 	// See https://github.com/woltapp/blurhash
 	Blurhash string `json:"blurhash,omitempty"`
diff --git a/internal/api/model/status.go b/internal/api/model/status.go
index fade58a49..6e25f787a 100644
--- a/internal/api/model/status.go
+++ b/internal/api/model/status.go
@@ -30,10 +30,10 @@ type Status struct {
 	CreatedAt string `json:"created_at"`
 	// ID of the status being replied to.
 	// example: 01FBVD42CQ3ZEEVMW180SBX03B
-	InReplyToID string `json:"in_reply_to_id,omitempty"`
+	InReplyToID string `json:"in_reply_to_id"`
 	// ID of the account being replied to.
 	// example: 01FBVD42CQ3ZEEVMW180SBX03B
-	InReplyToAccountID string `json:"in_reply_to_account_id,omitempty"`
+	InReplyToAccountID string `json:"in_reply_to_account_id"`
 	// Status contains sensitive content.
 	// example: false
 	Sensitive bool `json:"sensitive"`
@@ -67,13 +67,13 @@ type Status struct {
 	// This status has been bookmarked by the account viewing it.
 	Bookmarked bool `json:"bookmarked"`
 	// This status has been pinned by the account viewing it (only relevant for your own statuses).
-	Pinned bool `json:"pinned,omitempty"`
+	Pinned bool `json:"pinned"`
 	// The content of this status. Should be HTML, but might also be plaintext in some cases.
 	// example: <p>Hey this is a status!</p>
 	Content string `json:"content"`
 	// The status that this status reblogs/boosts.
 	// nullable: true
-	Reblog *StatusReblogged `json:"reblog,omitempty"`
+	Reblog *StatusReblogged `json:"reblog"`
 	// The application used to post this status, if visible.
 	Application *Application `json:"application"`
 	// The account that authored this status.
diff --git a/internal/processing/streaming/notification_test.go b/internal/processing/streaming/notification_test.go
index f26058744..206fab7b8 100644
--- a/internal/processing/streaming/notification_test.go
+++ b/internal/processing/streaming/notification_test.go
@@ -44,7 +44,7 @@ func (suite *NotificationTestSuite) TestStreamNotification() {
 	notification := &apimodel.Notification{
 		ID:        "01FH57SJCMDWQGEAJ0X08CE3WV",
 		Type:      "follow",
-		CreatedAt: "2021-10-04T08:52:36Z",
+		CreatedAt: "2021-10-04T08:52:36.00Z",
 		Account:   followAccountAPIModel,
 	}
 
@@ -52,7 +52,7 @@ func (suite *NotificationTestSuite) TestStreamNotification() {
 	suite.NoError(err)
 
 	msg := <-openStream.Messages
-	suite.Equal(`{"id":"01FH57SJCMDWQGEAJ0X08CE3WV","type":"follow","created_at":"2021-10-04T08:52:36Z","account":{"id":"01F8MH5ZK5VRH73AKHQM6Y9VNX","username":"foss_satan","acct":"foss_satan@fossbros-anonymous.io","display_name":"big gerald","locked":false,"bot":false,"created_at":"2021-09-26T10:52:36Z","note":"i post about like, i dunno, stuff, or whatever!!!!","url":"http://fossbros-anonymous.io/@foss_satan","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":0,"following_count":0,"statuses_count":1,"last_status_at":"2021-09-20T10:40:37Z","emojis":[],"fields":[]}}`, msg.Payload)
+	suite.Equal(`{"id":"01FH57SJCMDWQGEAJ0X08CE3WV","type":"follow","created_at":"2021-10-04T08:52:36.00Z","account":{"id":"01F8MH5ZK5VRH73AKHQM6Y9VNX","username":"foss_satan","acct":"foss_satan@fossbros-anonymous.io","display_name":"big gerald","locked":false,"bot":false,"created_at":"2021-09-26T10:52:36.00Z","note":"i post about like, i dunno, stuff, or whatever!!!!","url":"http://fossbros-anonymous.io/@foss_satan","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":0,"following_count":0,"statuses_count":1,"last_status_at":"2021-09-20T10:40:37.00Z","emojis":[],"fields":[]}}`, msg.Payload)
 }
 
 func TestNotificationTestSuite(t *testing.T) {
diff --git a/internal/typeutils/converter_test.go b/internal/typeutils/converter_test.go
index 0983669ac..604888050 100644
--- a/internal/typeutils/converter_test.go
+++ b/internal/typeutils/converter_test.go
@@ -44,7 +44,7 @@
 		"id": "http://fossbros-anonymous.io/users/foss_satan/statuses/106221634728637552/activity",
 		"type": "Create",
 		"actor": "http://fossbros-anonymous.io/users/foss_satan",
-		"published": "2021-05-12T09:58:38Z",
+		"published": "2021-05-12T09:58:38.00Z",
 		"to": [
 		  "http://fossbros-anonymous.io/users/foss_satan/followers"
 		],
@@ -57,7 +57,7 @@
 		  "type": "Note",
 		  "summary": null,
 		  "inReplyTo": "http://localhost:8080/users/the_mighty_zork/statuses/01F8MHAMCHF6Y650WCRSCP4WMY",
-		  "published": "2021-05-12T09:58:38Z",
+		  "published": "2021-05-12T09:58:38.00Z",
 		  "url": "https://ondergrond.org/@dumpsterqueer/106221634728637552",
 		  "attributedTo": "http://fossbros-anonymous.io/users/foss_satan",
 		  "to": [
@@ -115,7 +115,7 @@
 		"id": "http://fossbros-anonymous.io/users/foss_satan/statuses/106221567884565704/activity",
 		"type": "Create",
 		"actor": "http://fossbros-anonymous.io/users/foss_satan",
-		"published": "2021-05-12T09:41:38Z",
+		"published": "2021-05-12T09:41:38.00Z",
 		"to": [
 		  "http://fossbros-anonymous.io/users/foss_satan/followers"
 		],
@@ -127,7 +127,7 @@
 		  "type": "Note",
 		  "summary": null,
 		  "inReplyTo": null,
-		  "published": "2021-05-12T09:41:38Z",
+		  "published": "2021-05-12T09:41:38.00Z",
 		  "url": "https://ondergrond.org/@dumpsterqueer/106221567884565704",
 		  "attributedTo": "http://fossbros-anonymous.io/users/foss_satan",
 		  "to": [
@@ -160,7 +160,7 @@
 			  "id": "https://ondergrond.org/emojis/2390",
 			  "type": "Emoji",
 			  "name": ":party_parrot:",
-			  "updated": "2020-11-06T13:42:11Z",
+			  "updated": "2020-11-06T13:42:11.00Z",
 			  "icon": {
 				"type": "Image",
 				"mediaType": "image/gif",
@@ -171,7 +171,7 @@
 			  "id": "https://ondergrond.org/emojis/2395",
 			  "type": "Emoji",
 			  "name": ":amaze:",
-			  "updated": "2020-09-26T12:29:56Z",
+			  "updated": "2020-09-26T12:29:56.00Z",
 			  "icon": {
 				"type": "Image",
 				"mediaType": "image/png",
@@ -182,7 +182,7 @@
 			  "id": "https://ondergrond.org/emojis/764",
 			  "type": "Emoji",
 			  "name": ":blobsunglasses:",
-			  "updated": "2020-09-26T12:13:23Z",
+			  "updated": "2020-09-26T12:13:23.00Z",
 			  "icon": {
 				"type": "Image",
 				"mediaType": "image/png",
@@ -337,7 +337,7 @@
 		"type": "Note",
 		"summary": "reading: Punishment and Reward in the Corporate University",
 		"inReplyTo": "http://fossbros-anonymous.io/users/foss_satan/statuses/108138729399508469",
-		"published": "2022-04-15T23:49:37Z",
+		"published": "2022-04-15T23:49:37.00Z",
 		"url": "http://fossbros-anonymous.io/@foss_satan/108138763199405167",
 		"attributedTo": "http://fossbros-anonymous.io/users/foss_satan",
 		"to": [
@@ -385,7 +385,7 @@
 		"type": "Note",
 		"summary": "reading: Punishment and Reward in the Corporate University",
 		"inReplyTo": "http://fossbros-anonymous.io/users/foss_satan/statuses/108138729399508469",
-		"published": "2022-04-15T23:49:37Z",
+		"published": "2022-04-15T23:49:37.00Z",
 		"attributedTo": "http://fossbros-anonymous.io/users/foss_satan",
 		"to": [
 		  "https://www.w3.org/ns/activitystreams#Public"
@@ -447,7 +447,7 @@
 		  "owner": "https://owncast.example.org/federation/user/rgh",
 		  "publicKeyPem": "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAurN+lUNwcGV2poLNtaoT\naRtJzN6s4SDcBmIFk82lxhdMKC6/Nssm+hvDuxWGqL0+dHwSvrG11rA6irGuSzRk\niHjYyVwYe/p1CxqJxzUfZVJAWdsCFWy+HtDrTWs5sggj1MiL59uGxvkCep+OYBuG\nBI8CvSOMLrDp8soCg3EY+zSgpXtGMuRaaUukavsfuglApShB61ny7W8LG252iKC5\nmyO8L7l8TNa5BrIi/pRHLzvv9aWiCa8VKtvmqj+mClEhpkRhImSk5GPJXgouTTgl\ntT28NYYciSf9YYgZ0SNWHdLUCdkMF592j4+BbkPvdgzc70G4yyu2GcWnTzBuvF5X\nYwIDAQAB\n-----END PUBLIC KEY-----\n"
 		},
-		"published": "2022-05-22T18:44:57Z",
+		"published": "2022-05-22T18:44:57.00Z",
 		"summary": "linux audio stuff ",
 		"tag": [
 		  {
diff --git a/internal/typeutils/internaltofrontend.go b/internal/typeutils/internaltofrontend.go
index 9601f3e3a..8ad601f0c 100644
--- a/internal/typeutils/internaltofrontend.go
+++ b/internal/typeutils/internaltofrontend.go
@@ -238,6 +238,7 @@ func (c *converter) AttachmentToAPIAttachment(ctx context.Context, a *gtsmodel.M
 		ID:               a.ID,
 		Type:             strings.ToLower(string(a.Type)),
 		URL:              a.URL,
+		TextURL:          a.URL,
 		PreviewURL:       a.Thumbnail.URL,
 		RemoteURL:        a.RemoteURL,
 		PreviewRemoteURL: a.Thumbnail.RemoteURL,
diff --git a/internal/typeutils/internaltofrontend_test.go b/internal/typeutils/internaltofrontend_test.go
index e77f845a7..86b39451e 100644
--- a/internal/typeutils/internaltofrontend_test.go
+++ b/internal/typeutils/internaltofrontend_test.go
@@ -40,7 +40,7 @@ func (suite *InternalToFrontendTestSuite) TestAccountToFrontend() {
 
 	b, err := json.Marshal(apiAccount)
 	suite.NoError(err)
-	suite.Equal(`{"id":"01F8MH1H7YV1Z7D2C8K2730QBF","username":"the_mighty_zork","acct":"the_mighty_zork","display_name":"original zork (he/they)","locked":false,"bot":false,"created_at":"2022-05-20T11:09:18Z","note":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","url":"http://localhost:8080/@the_mighty_zork","avatar":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg","avatar_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.jpeg","header":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","header_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","followers_count":2,"following_count":2,"statuses_count":5,"last_status_at":"2022-05-20T11:37:55Z","emojis":[],"fields":[]}`, string(b))
+	suite.Equal(`{"id":"01F8MH1H7YV1Z7D2C8K2730QBF","username":"the_mighty_zork","acct":"the_mighty_zork","display_name":"original zork (he/they)","locked":false,"bot":false,"created_at":"2022-05-20T11:09:18.00Z","note":"\u003cp\u003ehey yo this is my profile!\u003c/p\u003e","url":"http://localhost:8080/@the_mighty_zork","avatar":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/original/01F8MH58A357CV5K7R7TJMSH6S.jpeg","avatar_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/avatar/small/01F8MH58A357CV5K7R7TJMSH6S.jpeg","header":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/original/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","header_static":"http://localhost:8080/fileserver/01F8MH1H7YV1Z7D2C8K2730QBF/header/small/01PFPMWK2FF0D9WMHEJHR07C3Q.jpeg","followers_count":2,"following_count":2,"statuses_count":5,"last_status_at":"2022-05-20T11:37:55.00Z","emojis":[],"fields":[]}`, string(b))
 }
 
 func (suite *InternalToFrontendTestSuite) TestStatusToFrontend() {
@@ -52,7 +52,7 @@ func (suite *InternalToFrontendTestSuite) TestStatusToFrontend() {
 	b, err := json.Marshal(apiStatus)
 	suite.NoError(err)
 
-	suite.Equal(`{"id":"01F8MH75CBF9JFX4ZAD54N0W0R","created_at":"2021-10-20T11:36:45Z","sensitive":false,"spoiler_text":"","visibility":"public","language":"en","uri":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","replies_count":0,"reblogs_count":0,"favourites_count":1,"favourited":true,"reblogged":false,"muted":false,"bookmarked":false,"content":"hello world! #welcome ! first post on the instance :rainbow: !","application":{"name":"superseriousbusiness","website":"https://superserious.business"},"account":{"id":"01F8MH17FWEB39HZJ76B6VXSKF","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2022-05-17T13:10:59Z","note":"","url":"http://localhost:8080/@admin","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":1,"following_count":1,"statuses_count":4,"last_status_at":"2021-10-20T10:41:37Z","emojis":[],"fields":[]},"media_attachments":[{"id":"01F8MH6NEM8D7527KZAECTCR76","type":"image","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg","preview_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/small/01F8MH6NEM8D7527KZAECTCR76.jpeg","meta":{"original":{"width":1200,"height":630,"size":"1200x630","aspect":1.9047619},"small":{"width":256,"height":134,"size":"256x134","aspect":1.9104477},"focus":{"x":0,"y":0}},"description":"Black and white image of some 50's style text saying: Welcome On Board","blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj"}],"mentions":[],"tags":[{"name":"welcome","url":"http://localhost:8080/tags/welcome"}],"emojis":[{"shortcode":"rainbow","url":"http://localhost:8080/fileserver/01F8MH261H1KSV3GW3016GZRY3/emoji/original/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","static_url":"http://localhost:8080/fileserver/01F8MH261H1KSV3GW3016GZRY3/emoji/static/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","visible_in_picker":true}],"card":null,"poll":null,"text":""}`, string(b))
+	suite.Equal(`{"id":"01F8MH75CBF9JFX4ZAD54N0W0R","created_at":"2021-10-20T11:36:45.00Z","in_reply_to_id":"","in_reply_to_account_id":"","sensitive":false,"spoiler_text":"","visibility":"public","language":"en","uri":"http://localhost:8080/users/admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","url":"http://localhost:8080/@admin/statuses/01F8MH75CBF9JFX4ZAD54N0W0R","replies_count":0,"reblogs_count":0,"favourites_count":1,"favourited":true,"reblogged":false,"muted":false,"bookmarked":false,"pinned":false,"content":"hello world! #welcome ! first post on the instance :rainbow: !","reblog":null,"application":{"name":"superseriousbusiness","website":"https://superserious.business"},"account":{"id":"01F8MH17FWEB39HZJ76B6VXSKF","username":"admin","acct":"admin","display_name":"","locked":false,"bot":false,"created_at":"2022-05-17T13:10:59.00Z","note":"","url":"http://localhost:8080/@admin","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":1,"following_count":1,"statuses_count":4,"last_status_at":"2021-10-20T10:41:37.00Z","emojis":[],"fields":[]},"media_attachments":[{"id":"01F8MH6NEM8D7527KZAECTCR76","type":"image","url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg","text_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/original/01F8MH6NEM8D7527KZAECTCR76.jpeg","preview_url":"http://localhost:8080/fileserver/01F8MH17FWEB39HZJ76B6VXSKF/attachment/small/01F8MH6NEM8D7527KZAECTCR76.jpeg","remote_url":"","preview_remote_url":"","meta":{"original":{"width":1200,"height":630,"size":"1200x630","aspect":1.9047619},"small":{"width":256,"height":134,"size":"256x134","aspect":1.9104477},"focus":{"x":0,"y":0}},"description":"Black and white image of some 50's style text saying: Welcome On Board","blurhash":"LNJRdVM{00Rj%Mayt7j[4nWBofRj"}],"mentions":[],"tags":[{"name":"welcome","url":"http://localhost:8080/tags/welcome"}],"emojis":[{"shortcode":"rainbow","url":"http://localhost:8080/fileserver/01F8MH261H1KSV3GW3016GZRY3/emoji/original/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","static_url":"http://localhost:8080/fileserver/01F8MH261H1KSV3GW3016GZRY3/emoji/static/01F8MH9H8E4VG3KDYJR9EGPXCQ.png","visible_in_picker":true}],"card":null,"poll":null,"text":""}`, string(b))
 }
 
 func (suite *InternalToFrontendTestSuite) TestInstanceToFrontend() {
@@ -97,7 +97,7 @@ func (suite *InternalToFrontendTestSuite) TestInstanceToFrontendWithAdminAccount
 	b, err := json.Marshal(apiInstance)
 	suite.NoError(err)
 
-	suite.Equal(`{"uri":"https://example.org","title":"example instance","description":"a much longer description","short_description":"a little description","email":"someone@example.org","version":"software-from-hell 0.666","registrations":false,"approval_required":false,"invites_enabled":false,"thumbnail":"","contact_account":{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"some_user","acct":"some_user@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28Z","note":"i'm a real son of a gun","url":"http://example.org/@some_user","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":"","emojis":[],"fields":[]},"max_toot_chars":0}`, string(b))
+	suite.Equal(`{"uri":"https://example.org","title":"example instance","description":"a much longer description","short_description":"a little description","email":"someone@example.org","version":"software-from-hell 0.666","registrations":false,"approval_required":false,"invites_enabled":false,"thumbnail":"","contact_account":{"id":"01FHMQX3GAABWSM0S2VZEC2SWC","username":"some_user","acct":"some_user@example.org","display_name":"some user","locked":true,"bot":false,"created_at":"2020-08-10T12:13:28.00Z","note":"i'm a real son of a gun","url":"http://example.org/@some_user","avatar":"","avatar_static":"","header":"","header_static":"","followers_count":0,"following_count":0,"statuses_count":0,"last_status_at":"","emojis":[],"fields":[]},"max_toot_chars":0}`, string(b))
 }
 
 func TestInternalToFrontendTestSuite(t *testing.T) {
diff --git a/internal/util/time.go b/internal/util/time.go
index d4d4ebf79..ec24853fb 100644
--- a/internal/util/time.go
+++ b/internal/util/time.go
@@ -21,7 +21,7 @@
 import "time"
 
 // ISO8601 is a formatter for serializing times that forces ISO8601 behavior.
-const ISO8601 = "2006-01-02T15:04:05Z"
+const ISO8601 = "2006-01-02T15:04:05.00Z"
 
 // FormatISO8601 converts the given time to UTC and then formats it
 // using the ISO8601 const, which the Mastodon API is able to understand.
diff --git a/internal/util/time_test.go b/internal/util/time_test.go
index 1d49e82af..5343c21a4 100644
--- a/internal/util/time_test.go
+++ b/internal/util/time_test.go
@@ -33,19 +33,19 @@ type TimeSuite struct {
 func (suite *TimeSuite) TestISO8601Format1() {
 	testTime := testrig.TimeMustParse("2022-05-17T13:10:59Z")
 	testTimeString := util.FormatISO8601(testTime)
-	suite.Equal("2022-05-17T13:10:59Z", testTimeString)
+	suite.Equal("2022-05-17T13:10:59.00Z", testTimeString)
 }
 
 func (suite *TimeSuite) TestISO8601Format2() {
 	testTime := testrig.TimeMustParse("2022-05-09T07:34:35+02:00")
 	testTimeString := util.FormatISO8601(testTime)
-	suite.Equal("2022-05-09T05:34:35Z", testTimeString)
+	suite.Equal("2022-05-09T05:34:35.00Z", testTimeString)
 }
 
 func (suite *TimeSuite) TestISO8601Format3() {
 	testTime := testrig.TimeMustParse("2021-10-04T10:52:36+02:00")
 	testTimeString := util.FormatISO8601(testTime)
-	suite.Equal("2021-10-04T08:52:36Z", testTimeString)
+	suite.Equal("2021-10-04T08:52:36.00Z", testTimeString)
 }
 
 func TestTimeSuite(t *testing.T) {