diff --git a/package-lock.json b/package-lock.json
index c4bf0a2d..a3eb782f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@0xpolygonid/js-sdk",
-  "version": "1.9.1",
+  "version": "1.9.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@0xpolygonid/js-sdk",
-      "version": "1.9.1",
+      "version": "1.9.2",
       "license": "AGPL-3.0",
       "dependencies": {
         "ajv": "8.12.0",
diff --git a/package.json b/package.json
index 933bb8c2..23c713aa 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@0xpolygonid/js-sdk",
-  "version": "1.9.1",
+  "version": "1.9.2",
   "description": "SDK to work with Polygon ID",
   "main": "dist/node/cjs/index.js",
   "module": "dist/node/esm/index.js",
diff --git a/src/proof/common.ts b/src/proof/common.ts
index 658017dc..ced10957 100644
--- a/src/proof/common.ts
+++ b/src/proof/common.ts
@@ -214,8 +214,7 @@ export const parseQueryMetadata = async (
       );
     }
 
-    const datatype = propertyQuery.operator === Operators.EXISTS ? XSDNS.Boolean : query.datatype;
-    query.values = await transformQueryValueToBigInts(propertyQuery.operatorValue, datatype);
+    query.values = Operators.EXISTS ? transformExistsValue(propertyQuery.operatorValue): await transformQueryValueToBigInts(propertyQuery.operatorValue, query.datatype);
   }
   return query;
 };
@@ -247,3 +246,11 @@ export const transformQueryValueToBigInts = async (
   }
   return values;
 };
+
+const transformExistsValue = (value : unknown): bigint[] =>{
+
+  if (typeof value == "boolean") {
+    return [BigInt(value)];
+ }
+ throw new Error("exists operator value must be true or false")
+}
\ No newline at end of file