diff --git a/src/domains/bizevents-app/api/bizevents-service/v1/_openapi.json.tpl b/src/domains/bizevents-app/api/bizevents-service/v1/_openapi.json.tpl
index bb75b8fd45..c90db2e2bb 100644
--- a/src/domains/bizevents-app/api/bizevents-service/v1/_openapi.json.tpl
+++ b/src/domains/bizevents-app/api/bizevents-service/v1/_openapi.json.tpl
@@ -536,7 +536,7 @@
           },
           "paymentDateTime": {
             "type": "string",
-            "format": "date"
+            "format": "date-time"
           },
           "applicationDate": {
             "type": "string",