diff --git a/SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncGroupsMessage.swift b/SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncGroupsMessage.swift
index a11b01844a..9bb0b465fd 100644
--- a/SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncGroupsMessage.swift
+++ b/SignalServiceKit/src/Messages/DeviceSyncing/OWSSyncGroupsMessage.swift
@@ -8,7 +8,7 @@ extension OWSSyncGroupsMessage {
 
     @objc
     public func buildPlainTextAttachmentFile(transaction: SDSAnyReadTransaction) -> URL? {
-        let fileUrl = OWSFileSystem.temporaryFileUrl()
+        let fileUrl = OWSFileSystem.temporaryFileUrl(isAvailableWhileDeviceLocked: true)
         guard let outputStream = OutputStream(url: fileUrl, append: false) else {
             owsFailDebug("Could not open outputStream.")
             return nil
diff --git a/SignalServiceKit/src/Network/API/OWSUpload.swift b/SignalServiceKit/src/Network/API/OWSUpload.swift
index f8ebe0dacd..7b6c280bac 100644
--- a/SignalServiceKit/src/Network/API/OWSUpload.swift
+++ b/SignalServiceKit/src/Network/API/OWSUpload.swift
@@ -676,7 +676,7 @@ public extension OWSUpload {
 
         let cdn0UrlSession = signalService.urlSessionForCdn(cdnNumber: 0)
         return firstly { () -> Promise<HTTPResponse> in
-            let dataFileUrl = OWSFileSystem.temporaryFileUrl()
+            let dataFileUrl = OWSFileSystem.temporaryFileUrl(isAvailableWhileDeviceLocked: true)
             try data.write(to: dataFileUrl)
 
             let request = try cdn0UrlSession.buildRequest(uploadUrlPath, method: .post)
diff --git a/SignalServiceKit/src/Network/OWSURLSession.swift b/SignalServiceKit/src/Network/OWSURLSession.swift
index 2f094c055d..fc8843c1e7 100644
--- a/SignalServiceKit/src/Network/OWSURLSession.swift
+++ b/SignalServiceKit/src/Network/OWSURLSession.swift
@@ -1311,7 +1311,7 @@ extension OWSURLSession {
                                            textParts textPartsDictionary: OrderedDictionary<String, String>,
                                            progress progressBlock: ProgressBlock? = nil) -> Promise<HTTPResponse> {
         do {
-            let multipartBodyFileURL = OWSFileSystem.temporaryFileUrl()
+            let multipartBodyFileURL = OWSFileSystem.temporaryFileUrl(isAvailableWhileDeviceLocked: true)
             let boundary = OWSMultipartBody.createMultipartFormBoundary()
             // Order of form parts matters.
             let textParts = textPartsDictionary.map { (key, value) in
diff --git a/SignalServiceKit/src/Util/AudioWaveform.swift b/SignalServiceKit/src/Util/AudioWaveform.swift
index ea63dfb658..3bff3e738b 100644
--- a/SignalServiceKit/src/Util/AudioWaveform.swift
+++ b/SignalServiceKit/src/Util/AudioWaveform.swift
@@ -106,7 +106,7 @@ public class AudioWaveformManager: NSObject {
         // true and this path will no longer be hit.
         if !asset.isReadable, audioPath.hasSuffix("m4a") {
 
-            let symlinkPath = OWSFileSystem.temporaryFilePath(fileExtension: "aac")
+            let symlinkPath = OWSFileSystem.temporaryFilePath(fileExtension: "aac", isAvailableWhileDeviceLocked: true)
             do {
                 try FileManager.default.createSymbolicLink(atPath: symlinkPath,
                                                            withDestinationPath: audioPath)