diff --git a/BTCPayServer/wwwroot/swagger/v1/swagger.template.invoices.json b/BTCPayServer/wwwroot/swagger/v1/swagger.template.invoices.json
index 14d40a21d..97441f56c 100644
--- a/BTCPayServer/wwwroot/swagger/v1/swagger.template.invoices.json
+++ b/BTCPayServer/wwwroot/swagger/v1/swagger.template.invoices.json
@@ -750,7 +750,7 @@
                     },
                     "receivedDate": {
                         "type": "string",
-                        "format": "date-time",
+                        "format": "int64",
                         "description": "The date the payment was recorded"
                     },
                     "value": {
diff --git a/BTCPayServer/wwwroot/swagger/v1/swagger.template.payment-requests.json b/BTCPayServer/wwwroot/swagger/v1/swagger.template.payment-requests.json
index 9bbde2c4b..90dc62bee 100644
--- a/BTCPayServer/wwwroot/swagger/v1/swagger.template.payment-requests.json
+++ b/BTCPayServer/wwwroot/swagger/v1/swagger.template.payment-requests.json
@@ -299,7 +299,7 @@
                         "type": "string",
                         "description": "The creation date of the payment request",
                         "nullable": false,
-                        "format": "date-time"
+                        "format": "int64"
                     }
                 }
             },
@@ -342,7 +342,7 @@
                         "type": "string",
                         "description": "The expiry date of the payment request",
                         "nullable": true,
-                        "format": "date-time"
+                        "format": "int64"
                     },
                     "embeddedCSS": {
                         "type": "string",