diff --git a/packages/ics721/schema/ics721.json b/packages/ics721/schema/ics721.json
index f4e5fd9d..b59a2e48 100644
--- a/packages/ics721/schema/ics721.json
+++ b/packages/ics721/schema/ics721.json
@@ -16,7 +16,7 @@
           "integer",
           "null"
         ],
-        "format": "uint",
+        "format": "uint32",
         "minimum": 0.0
       },
       "cw721_admin": {
@@ -1280,12 +1280,12 @@
     },
     "contract_addr_length": {
       "$schema": "http://json-schema.org/draft-07/schema#",
-      "title": "Nullable_uint",
+      "title": "Nullable_uint32",
       "type": [
         "integer",
         "null"
       ],
-      "format": "uint",
+      "format": "uint32",
       "minimum": 0.0
     },
     "cw721_admin": {
diff --git a/packages/ics721/schema/raw/instantiate.json b/packages/ics721/schema/raw/instantiate.json
index 70501415..68486ce8 100644
--- a/packages/ics721/schema/raw/instantiate.json
+++ b/packages/ics721/schema/raw/instantiate.json
@@ -12,7 +12,7 @@
         "integer",
         "null"
       ],
-      "format": "uint",
+      "format": "uint32",
       "minimum": 0.0
     },
     "cw721_admin": {
diff --git a/packages/ics721/schema/raw/response_to_contract_addr_length.json b/packages/ics721/schema/raw/response_to_contract_addr_length.json
index 83ca1b97..8c78001d 100644
--- a/packages/ics721/schema/raw/response_to_contract_addr_length.json
+++ b/packages/ics721/schema/raw/response_to_contract_addr_length.json
@@ -1,10 +1,10 @@
 {
   "$schema": "http://json-schema.org/draft-07/schema#",
-  "title": "Nullable_uint",
+  "title": "Nullable_uint32",
   "type": [
     "integer",
     "null"
   ],
-  "format": "uint",
+  "format": "uint32",
   "minimum": 0.0
 }