diff --git a/test/pleroma/object_test.exs b/test/pleroma/object_test.exs
index 198d3b1cf..99caba336 100644
--- a/test/pleroma/object_test.exs
+++ b/test/pleroma/object_test.exs
@@ -82,7 +82,7 @@ defmodule Pleroma.ObjectTest do
       Pleroma.Config.put([:instance, :cleanup_attachments], false)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -116,7 +116,7 @@ defmodule Pleroma.ObjectTest do
       Pleroma.Config.put([:instance, :cleanup_attachments], true)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -155,7 +155,7 @@ defmodule Pleroma.ObjectTest do
       File.mkdir_p!(uploads_dir)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -188,7 +188,7 @@ defmodule Pleroma.ObjectTest do
       Pleroma.Config.put([:instance, :cleanup_attachments], true)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -225,7 +225,7 @@ defmodule Pleroma.ObjectTest do
       Pleroma.Config.put([:instance, :cleanup_attachments], true)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/upload/filter/anonymize_filename_test.exs b/test/pleroma/upload/filter/anonymize_filename_test.exs
index 19b915cc8..7ef01ce91 100644
--- a/test/pleroma/upload/filter/anonymize_filename_test.exs
+++ b/test/pleroma/upload/filter/anonymize_filename_test.exs
@@ -13,7 +13,7 @@ defmodule Pleroma.Upload.Filter.AnonymizeFilenameTest do
 
     upload_file = %Upload{
       name: "an… image.jpg",
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image_tmp.jpg")
     }
 
diff --git a/test/pleroma/upload/filter/dedupe_test.exs b/test/pleroma/upload/filter/dedupe_test.exs
index 75c7198e1..92a3d7df3 100644
--- a/test/pleroma/upload/filter/dedupe_test.exs
+++ b/test/pleroma/upload/filter/dedupe_test.exs
@@ -18,7 +18,7 @@ defmodule Pleroma.Upload.Filter.DedupeTest do
 
     upload = %Upload{
       name: "an… image.jpg",
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image_tmp.jpg"),
       tempfile: Path.absname("test/fixtures/image_tmp.jpg")
     }
diff --git a/test/pleroma/upload/filter/exiftool_test.exs b/test/pleroma/upload/filter/exiftool_test.exs
index d4cd4ba11..6b978b64c 100644
--- a/test/pleroma/upload/filter/exiftool_test.exs
+++ b/test/pleroma/upload/filter/exiftool_test.exs
@@ -16,7 +16,7 @@ defmodule Pleroma.Upload.Filter.ExiftoolTest do
 
     upload = %Pleroma.Upload{
       name: "image_with_GPS_data.jpg",
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/DSCN0010.jpg"),
       tempfile: Path.absname("test/fixtures/DSCN0010_tmp.jpg")
     }
diff --git a/test/pleroma/upload/filter/mogrifun_test.exs b/test/pleroma/upload/filter/mogrifun_test.exs
index dc1e9e78f..fc2f68276 100644
--- a/test/pleroma/upload/filter/mogrifun_test.exs
+++ b/test/pleroma/upload/filter/mogrifun_test.exs
@@ -17,7 +17,7 @@ defmodule Pleroma.Upload.Filter.MogrifunTest do
 
     upload = %Upload{
       name: "an… image.jpg",
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image_tmp.jpg"),
       tempfile: Path.absname("test/fixtures/image_tmp.jpg")
     }
diff --git a/test/pleroma/upload/filter/mogrify_test.exs b/test/pleroma/upload/filter/mogrify_test.exs
index bf64b96b3..6dee02e8b 100644
--- a/test/pleroma/upload/filter/mogrify_test.exs
+++ b/test/pleroma/upload/filter/mogrify_test.exs
@@ -18,7 +18,7 @@ defmodule Pleroma.Upload.Filter.MogrifyTest do
 
     upload = %Pleroma.Upload{
       name: "an… image.jpg",
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image_tmp.jpg"),
       tempfile: Path.absname("test/fixtures/image_tmp.jpg")
     }
diff --git a/test/pleroma/upload/filter_test.exs b/test/pleroma/upload/filter_test.exs
index 352b66402..09394929c 100644
--- a/test/pleroma/upload/filter_test.exs
+++ b/test/pleroma/upload/filter_test.exs
@@ -20,7 +20,7 @@ defmodule Pleroma.Upload.FilterTest do
 
     upload = %Pleroma.Upload{
       name: "an… image.jpg",
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image_tmp.jpg"),
       tempfile: Path.absname("test/fixtures/image_tmp.jpg")
     }
diff --git a/test/pleroma/upload_test.exs b/test/pleroma/upload_test.exs
index 4280bfcac..f52d4dff6 100644
--- a/test/pleroma/upload_test.exs
+++ b/test/pleroma/upload_test.exs
@@ -112,7 +112,7 @@ defmodule Pleroma.UploadTest do
       File.cp!("test/fixtures/image.jpg", "test/fixtures/image_tmp.jpg")
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image_tmp.jpg"),
         filename: "image.jpg"
       }
diff --git a/test/pleroma/uploaders/local_test.exs b/test/pleroma/uploaders/local_test.exs
index 18122ff6c..1ce7be485 100644
--- a/test/pleroma/uploaders/local_test.exs
+++ b/test/pleroma/uploaders/local_test.exs
@@ -19,7 +19,7 @@ defmodule Pleroma.Uploaders.LocalTest do
 
       file = %Pleroma.Upload{
         name: "image.jpg",
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: file_path,
         tempfile: Path.absname("test/fixtures/image_tmp.jpg")
       }
@@ -38,7 +38,7 @@ defmodule Pleroma.Uploaders.LocalTest do
 
       file = %Pleroma.Upload{
         name: "image.jpg",
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: file_path,
         tempfile: Path.absname("test/fixtures/image_tmp.jpg")
       }
diff --git a/test/pleroma/uploaders/s3_test.exs b/test/pleroma/uploaders/s3_test.exs
index d949c90a5..e7a013dd8 100644
--- a/test/pleroma/uploaders/s3_test.exs
+++ b/test/pleroma/uploaders/s3_test.exs
@@ -56,7 +56,7 @@ defmodule Pleroma.Uploaders.S3Test do
     setup do
       file_upload = %Pleroma.Upload{
         name: "image-tet.jpg",
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: "test_folder/image-tet.jpg",
         tempfile: Path.absname("test/instance_static/add/shortcode.png")
       }
diff --git a/test/pleroma/web/activity_pub/activity_pub_test.exs b/test/pleroma/web/activity_pub/activity_pub_test.exs
index 804305a13..8f53d0599 100644
--- a/test/pleroma/web/activity_pub/activity_pub_test.exs
+++ b/test/pleroma/web/activity_pub/activity_pub_test.exs
@@ -1029,7 +1029,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubTest do
   describe "uploading files" do
     setup do
       test_file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/activity_pub/object_validators/attachment_validator_test.exs b/test/pleroma/web/activity_pub/object_validators/attachment_validator_test.exs
index 558bb3131..760388e80 100644
--- a/test/pleroma/web/activity_pub/object_validators/attachment_validator_test.exs
+++ b/test/pleroma/web/activity_pub/object_validators/attachment_validator_test.exs
@@ -56,7 +56,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.AttachmentValidatorTest do
       user = insert(:user)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/activity_pub/object_validators/chat_validation_test.exs b/test/pleroma/web/activity_pub/object_validators/chat_validation_test.exs
index 16e4808e5..d7e299224 100644
--- a/test/pleroma/web/activity_pub/object_validators/chat_validation_test.exs
+++ b/test/pleroma/web/activity_pub/object_validators/chat_validation_test.exs
@@ -77,7 +77,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.ChatValidationTest do
       user: user
     } do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -98,7 +98,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.ChatValidationTest do
       user: user
     } do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -119,7 +119,7 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.ChatValidationTest do
       user: user
     } do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/common_api_test.exs b/test/pleroma/web/common_api_test.exs
index e34f5a49b..d19d484b7 100644
--- a/test/pleroma/web/common_api_test.exs
+++ b/test/pleroma/web/common_api_test.exs
@@ -100,7 +100,7 @@ defmodule Pleroma.Web.CommonAPITest do
       recipient = insert(:user)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs
index f7f1369e4..4ef404541 100644
--- a/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/account_controller_test.exs
@@ -380,7 +380,7 @@ defmodule Pleroma.Web.MastodonAPI.AccountControllerTest do
       other_user = insert(:user)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs
index 906fd940f..d2bd57515 100644
--- a/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/media_controller_test.exs
@@ -14,7 +14,7 @@ defmodule Pleroma.Web.MastodonAPI.MediaControllerTest do
 
     setup do
       image = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -74,7 +74,7 @@ defmodule Pleroma.Web.MastodonAPI.MediaControllerTest do
 
     setup %{user: actor} do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -106,7 +106,7 @@ defmodule Pleroma.Web.MastodonAPI.MediaControllerTest do
 
     setup %{user: actor} do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs b/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
index 633a25e50..61359214a 100644
--- a/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
+++ b/test/pleroma/web/mastodon_api/controllers/status_controller_test.exs
@@ -167,7 +167,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
 
     test "posting an undefined status with an attachment", %{user: user, conn: conn} do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -408,7 +408,7 @@ defmodule Pleroma.Web.MastodonAPI.StatusControllerTest do
         |> Kernel.<>("Z")
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/mastodon_api/update_credentials_test.exs b/test/pleroma/web/mastodon_api/update_credentials_test.exs
index fe462caa3..ed1921c91 100644
--- a/test/pleroma/web/mastodon_api/update_credentials_test.exs
+++ b/test/pleroma/web/mastodon_api/update_credentials_test.exs
@@ -222,7 +222,7 @@ defmodule Pleroma.Web.MastodonAPI.UpdateCredentialsTest do
 
     test "updates the user's avatar", %{user: user, conn: conn} do
       new_avatar = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -246,7 +246,7 @@ defmodule Pleroma.Web.MastodonAPI.UpdateCredentialsTest do
 
     test "updates the user's banner", %{user: user, conn: conn} do
       new_header = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
@@ -265,7 +265,7 @@ defmodule Pleroma.Web.MastodonAPI.UpdateCredentialsTest do
 
     test "updates the user's background", %{conn: conn, user: user} do
       new_header = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/mastodon_api/views/scheduled_activity_view_test.exs b/test/pleroma/web/mastodon_api/views/scheduled_activity_view_test.exs
index fbfd873ef..04f73f5a0 100644
--- a/test/pleroma/web/mastodon_api/views/scheduled_activity_view_test.exs
+++ b/test/pleroma/web/mastodon_api/views/scheduled_activity_view_test.exs
@@ -22,7 +22,7 @@ defmodule Pleroma.Web.MastodonAPI.ScheduledActivityViewTest do
       |> NaiveDateTime.to_iso8601()
 
     file = %Plug.Upload{
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image.jpg"),
       filename: "an_image.jpg"
     }
diff --git a/test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs
index 11d5ba373..6381f9757 100644
--- a/test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/chat_controller_test.exs
@@ -105,7 +105,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatControllerTest do
 
     test "it works with an attachment", %{conn: conn, user: user} do
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }
diff --git a/test/pleroma/web/pleroma_api/controllers/mascot_controller_test.exs b/test/pleroma/web/pleroma_api/controllers/mascot_controller_test.exs
index e2ead6e15..d6be92869 100644
--- a/test/pleroma/web/pleroma_api/controllers/mascot_controller_test.exs
+++ b/test/pleroma/web/pleroma_api/controllers/mascot_controller_test.exs
@@ -24,7 +24,7 @@ defmodule Pleroma.Web.PleromaAPI.MascotControllerTest do
     assert json_response_and_validate_schema(ret_conn, 415)
 
     file = %Plug.Upload{
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image.jpg"),
       filename: "an_image.jpg"
     }
@@ -48,7 +48,7 @@ defmodule Pleroma.Web.PleromaAPI.MascotControllerTest do
 
     # When a user sets their mascot, we should get that back
     file = %Plug.Upload{
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image.jpg"),
       filename: "an_image.jpg"
     }
diff --git a/test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs b/test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs
index 26272c125..f171a1e55 100644
--- a/test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs
+++ b/test/pleroma/web/pleroma_api/views/chat_message_reference_view_test.exs
@@ -19,7 +19,7 @@ defmodule Pleroma.Web.PleromaAPI.ChatMessageReferenceViewTest do
     recipient = insert(:user)
 
     file = %Plug.Upload{
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image.jpg"),
       filename: "an_image.jpg"
     }
diff --git a/test/pleroma/web/plugs/uploaded_media_plug_test.exs b/test/pleroma/web/plugs/uploaded_media_plug_test.exs
index 07f52c8cd..7c8313121 100644
--- a/test/pleroma/web/plugs/uploaded_media_plug_test.exs
+++ b/test/pleroma/web/plugs/uploaded_media_plug_test.exs
@@ -11,7 +11,7 @@ defmodule Pleroma.Web.Plugs.UploadedMediaPlugTest do
     File.cp!("test/fixtures/image.jpg", "test/fixtures/image_tmp.jpg")
 
     file = %Plug.Upload{
-      content_type: "image/jpg",
+      content_type: "image/jpeg",
       path: Path.absname("test/fixtures/image_tmp.jpg"),
       filename: "nice_tf.jpg"
     }
diff --git a/test/pleroma/web/push/impl_test.exs b/test/pleroma/web/push/impl_test.exs
index 6cab46696..7d8cc999a 100644
--- a/test/pleroma/web/push/impl_test.exs
+++ b/test/pleroma/web/push/impl_test.exs
@@ -219,7 +219,7 @@ defmodule Pleroma.Web.Push.ImplTest do
       recipient = insert(:user)
 
       file = %Plug.Upload{
-        content_type: "image/jpg",
+        content_type: "image/jpeg",
         path: Path.absname("test/fixtures/image.jpg"),
         filename: "an_image.jpg"
       }