diff --git a/landing/src/components/WalletCard.vue b/landing/src/components/WalletCard.vue
index 4811857..a2c68c8 100644
--- a/landing/src/components/WalletCard.vue
+++ b/landing/src/components/WalletCard.vue
@@ -21,8 +21,8 @@ async function fetchWalletData(addr: string) {
       method: 'POST',
       headers: { 'Content-Type': 'application/json' },
       body: JSON.stringify({
-        query: `{
-          holders(address: "${addr.toLowerCase()}") {
+        query: `query WalletData($address: String!) {
+          holders(address: $address) {
             balance
             totalEthSpent
             totalTokensAcquired
@@ -31,6 +31,7 @@ async function fetchWalletData(addr: string) {
             items { currentPriceWei }
           }
         }`,
+        variables: { address: addr.toLowerCase() },
       }),
     });
     const json = await res.json();