diff --git a/schemas/financial-vulnerability.json b/schemas/financial-vulnerability.json
index ebf7978..63850ff 100644
--- a/schemas/financial-vulnerability.json
+++ b/schemas/financial-vulnerability.json
@@ -79,7 +79,7 @@
                         },
                         "assessmentDate": {
                             "type": "string",
-                            "format": "date-time"
+                            "format": "date"
                         }
                     },
                     "required": [
diff --git a/schemas/membership-card.json b/schemas/membership-card.json
index 211b36e..eb19695 100644
--- a/schemas/membership-card.json
+++ b/schemas/membership-card.json
@@ -46,11 +46,11 @@
             },
             "affiliatedSince": {
               "type": "string",
-              "format": "date-time"
+              "format": "date"
             },
             "affiliatedUntil": {
               "type": "string",
-              "format": "date-time"
+              "format": "date"
             },
             "typeOfPerson": {
               "type": "string",