diff --git a/Tusker/Caching/ImageCache.swift b/Tusker/Caching/ImageCache.swift
index 9949f5de..555a18bc 100644
--- a/Tusker/Caching/ImageCache.swift
+++ b/Tusker/Caching/ImageCache.swift
@@ -96,7 +96,7 @@ final class ImageCache: @unchecked Sendable {
     }
     
     private func fetch(url: URL) async -> FetchResult {
-        guard let (data, _) = try? await URLSession.shared.data(from: url) else {
+        guard let (data, _) = try? await URLSession.appDefault.data(from: url) else {
             return .none
         }
         guard let image = UIImage(data: data) else {
diff --git a/Tusker/Screens/Conversation/ConversationViewController.swift b/Tusker/Screens/Conversation/ConversationViewController.swift
index 43ae6ef7..f6bddcee 100644
--- a/Tusker/Screens/Conversation/ConversationViewController.swift
+++ b/Tusker/Screens/Conversation/ConversationViewController.swift
@@ -222,7 +222,7 @@ class ConversationViewController: UIViewController {
             }
         }
         if isLikelyMastodonRemoteStatus(url: url),
-           let (_, response) = try? await URLSession.shared.data(from: url, delegate: RedirectBlocker()),
+           let (_, response) = try? await URLSession.appDefault.data(from: url, delegate: RedirectBlocker()),
            let location = (response as? HTTPURLResponse)?.value(forHTTPHeaderField: "location") {
             effectiveURL = location
         } else {
diff --git a/Tusker/Screens/Gallery/StatusAttachmentsGalleryDataSource.swift b/Tusker/Screens/Gallery/StatusAttachmentsGalleryDataSource.swift
index 1119b12a..1d423090 100644
--- a/Tusker/Screens/Gallery/StatusAttachmentsGalleryDataSource.swift
+++ b/Tusker/Screens/Gallery/StatusAttachmentsGalleryDataSource.swift
@@ -98,7 +98,7 @@ class StatusAttachmentsGalleryDataSource: GalleryDataSource {
         case .unknown:
             return LoadingGalleryContentViewController(caption: nil) {
                 do {
-                    let (data, _) = try await URLSession.shared.data(from: attachment.url)
+                    let (data, _) = try await URLSession.appDefault.data(from: attachment.url)
                     let url = FileManager.default.temporaryDirectory.appendingPathComponent(attachment.url.lastPathComponent)
                     try data.write(to: url)
                     return FallbackGalleryNavigationController(url: url)
diff --git a/Tusker/Views/Attachments/AttachmentView.swift b/Tusker/Views/Attachments/AttachmentView.swift
index 42edf2ad..5b4353ca 100644
--- a/Tusker/Views/Attachments/AttachmentView.swift
+++ b/Tusker/Views/Attachments/AttachmentView.swift
@@ -511,7 +511,7 @@ extension AttachmentView: UIContextMenuInteractionDelegate {
             } else if self.attachment.kind == .gifv || self.attachment.kind == .video {
                 itemSource = VideoActivityItemSource(asset: AVAsset(url: self.attachment.url), url: self.attachment.url)
                 itemData = Task {
-                    try? await URLSession.shared.data(from: self.attachment.url).0
+                    try? await URLSession.appDefault.data(from: self.attachment.url).0
                 }
             } else {
                 return nil