diff --git a/.changeset/thick-rivers-promise.md b/.changeset/thick-rivers-promise.md
new file mode 100644
index 0000000000..2f58fa3bc1
--- /dev/null
+++ b/.changeset/thick-rivers-promise.md
@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Updated Worldchain Sepolia.
diff --git a/src/chains/definitions/worldchainSepolia.ts b/src/chains/definitions/worldchainSepolia.ts
index 6a1a40ad6d..dbe30e9a09 100644
--- a/src/chains/definitions/worldchainSepolia.ts
+++ b/src/chains/definitions/worldchainSepolia.ts
@@ -11,12 +11,12 @@ export const worldchainSepolia = /*#__PURE__*/ defineChain({
   nativeCurrency: { name: 'Ether', symbol: 'ETH', decimals: 18 },
   rpcUrls: {
     default: { http: ['https://worldchain-sepolia.g.alchemy.com/public'] },
-    public: { http: ['https://worldchain-sepolia.g.alchemy.com/public'] },
   },
   blockExplorers: {
     default: {
       name: 'Worldscan Sepolia',
       url: 'https://sepolia.worldscan.org',
+      apiUrl: 'https://api-sepolia.worldscan.org/api',
     },
     blockscout: {
       name: 'Blockscout',