diff --git a/packages/paima-sdk/paima-crypto/package.json b/packages/paima-sdk/paima-crypto/package.json
index 10158624..91af1a8d 100644
--- a/packages/paima-sdk/paima-crypto/package.json
+++ b/packages/paima-sdk/paima-crypto/package.json
@@ -34,6 +34,7 @@
     "@polkadot/util-crypto": "^10.4.2",
     "bech32": "^2.0.0",
     "@paima/utils": "2.3.0",
-    "mina-signer": "2.1.1"
+    "mina-signer": "^2.1.1",
+    "base58check": "^2.0.0"
   }
 }
diff --git a/packages/paima-sdk/paima-crypto/src/mina.ts b/packages/paima-sdk/paima-crypto/src/mina.ts
index 3be2fe40..9b7285c9 100644
--- a/packages/paima-sdk/paima-crypto/src/mina.ts
+++ b/packages/paima-sdk/paima-crypto/src/mina.ts
@@ -1,14 +1,16 @@
 import { doLog } from '@paima/utils';
 import type { IVerify } from './IVerify.js';
+const base58check = require('base58check');
 
 export class MinaCrypto implements IVerify {
   verifyAddress = async (address: string): Promise<boolean> => {
-    // base58 alphabet
-    return await Promise.resolve(
-      /^[1|2|3|4|5|6|7|8|9|A|B|C|D|E|F|G|H|J|K|L|M|N|P|Q|R|S|T|U|V|W|X|Y|Z|a|b|c|d|e|f|g|h|i|j|k|m|n|o|p|q|r|s|t|u|v|w|x|y|z]/.test(
-        address
-      )
-    );
+    try {
+      base58check.decode(address);
+    } catch (e) {
+      return false;
+    }
+
+    return true;
   };
   verifySignature = async (
     userAddress: string,