diff --git a/.changeset/angry-lizards-hammer.md b/.changeset/angry-lizards-hammer.md
new file mode 100644
index 00000000..1fb558b0
--- /dev/null
+++ b/.changeset/angry-lizards-hammer.md
@@ -0,0 +1,5 @@
+---
+"@farcaster/hubble": patch
+---
+
+Prevent connecting to peers not in allowed peer list
diff --git a/apps/hubble/src/hubble.ts b/apps/hubble/src/hubble.ts
index f09bc61e..75dce91d 100644
--- a/apps/hubble/src/hubble.ts
+++ b/apps/hubble/src/hubble.ts
@@ -946,6 +946,12 @@ export class Hub implements HubInterface {
   }
 
   async isValidPeer(ourPeerId: PeerId, message: ContactInfoContent) {
+    const peerId = ourPeerId.toString();
+    if (MAINNET_ALLOWED_PEERS?.length && !MAINNET_ALLOWED_PEERS.includes(peerId)) {
+      log.warn(`Peer ${ourPeerId.toString()} is not in the allowed peers list`);
+      return false;
+    }
+
     const theirVersion = message.hubVersion;
     const theirNetwork = message.network;