diff --git a/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/http/DigestingRequestBody.kt b/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/http/DigestingRequestBody.kt
index 403d919f58..4162f1d13f 100644
--- a/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/http/DigestingRequestBody.kt
+++ b/libsignal/service/src/main/java/org/whispersystems/signalservice/internal/push/http/DigestingRequestBody.kt
@@ -2,6 +2,7 @@ package org.whispersystems.signalservice.internal.push.http
 
 import okhttp3.MediaType
 import okhttp3.RequestBody
+import okhttp3.internal.http.UnrepeatableRequestBody
 import okio.BufferedSink
 import org.signal.libsignal.protocol.logging.Log
 import org.whispersystems.signalservice.api.crypto.DigestingOutputStream
@@ -23,7 +24,7 @@ class DigestingRequestBody(
   private val progressListener: SignalServiceAttachment.ProgressListener?,
   private val cancelationSignal: CancelationSignal?,
   private val contentStart: Long
-) : RequestBody() {
+) : RequestBody(), UnrepeatableRequestBody {
   lateinit var transmittedDigest: ByteArray
     private set
   var incrementalDigest: ByteArray? = null