diff --git a/InvenTree/plugins/test_integration.py b/InvenTree/plugins/test_integration.py
index 080d5fbe91..9eea22d4fc 100644
--- a/InvenTree/plugins/test_integration.py
+++ b/InvenTree/plugins/test_integration.py
@@ -132,7 +132,7 @@ class IntegrationPluginBaseTests(TestCase):
             PLUGIN_NAME = 'Aplugin'
             PLUGIN_SLUG = 'a'
             PLUGIN_TITLE = 'a titel'
-            PUBLISH_DATE = "1111.11.11"
+            PUBLISH_DATE = "1111-11-11"
             VERSION = '1.2.3a'
 
         self.plugin_name = NameIntegrationPluginBase()