diff --git a/openapi.yaml b/openapi.yaml
index 95a848f..18382cc 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -1328,7 +1328,7 @@ components:
           format: uint64
         Date:
           type: integer
-          format: uint64
+          format: int64
         User:
           type: integer
           format: uint64
@@ -1424,7 +1424,7 @@ components:
           minimum: 0
         Date:
           type: integer
-          format: uint64
+          format: int64
           minimum: 0
     Mapfix:
       required:
@@ -1459,11 +1459,11 @@ components:
           minimum: 0
         CreatedAt:
           type: integer
-          format: uint64
+          format: int64
           minimum: 0
         UpdatedAt:
           type: integer
-          format: uint64
+          format: int64
           minimum: 0
         Submitter:
           type: integer
@@ -1534,7 +1534,7 @@ components:
           minimum: 0
         Date:
           type: integer
-          format: uint64
+          format: int64
           minimum: 0
         Owner:
           type: integer