diff --git a/crashreports/tests/test_rest_api_logfiles.py b/crashreports/tests/test_rest_api_logfiles.py
index b646e2a..c55f4c9 100644
--- a/crashreports/tests/test_rest_api_logfiles.py
+++ b/crashreports/tests/test_rest_api_logfiles.py
@@ -1,7 +1,6 @@
 """Tests for the logfiles REST API."""
 
 import os
-import tempfile
 
 from django.urls import reverse
 
@@ -40,8 +39,8 @@
         device_local_id = self._upload_crashreport(user, uuid)
 
         # Upload a logfile for the crashreport
-        logfile = tempfile.NamedTemporaryFile("w+", suffix=".log", delete=True)
-        logfile.write(u"blihblahblub")
+        logfile = open(Dummy.DEFAULT_DUMMY_LOG_FILE_PATH, "rb")
+
         response = user.post(
             reverse(
                 self.PUT_LOGFILE_URL,
@@ -50,6 +49,7 @@
             {"file": logfile},
             format="multipart",
         )
+        logfile.close()
         self.assertEqual(status.HTTP_201_CREATED, response.status_code)
 
     def test_logfile_upload_as_user(self):
diff --git a/crashreports/tests/utils.py b/crashreports/tests/utils.py
index 6ec7486..ac59231 100644
--- a/crashreports/tests/utils.py
+++ b/crashreports/tests/utils.py
@@ -1,5 +1,6 @@
 """Utility functions shared by all crashreports tests."""
 
+import os
 from typing import Optional
 
 from django.contrib.auth.models import User
@@ -72,6 +73,10 @@
         "other": "whatever",
     }
 
+    DEFAULT_DUMMY_LOG_FILE_PATH = os.path.join(
+        "resources", "test", "test_logfile.zip"
+    )
+
     @staticmethod
     def _update_copy(original, update):
         """Merge fields of update into a copy of original."""