diff --git a/package.json b/package.json
index fe83638fe..ca79a1565 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@across-protocol/sdk",
   "author": "UMA Team",
-  "version": "4.3.100",
+  "version": "4.3.101",
   "license": "AGPL-3.0",
   "homepage": "https://docs.across.to/reference/sdk",
   "files": [
diff --git a/src/utils/AddressUtils.ts b/src/utils/AddressUtils.ts
index 49b4d5f89..457d3bd49 100644
--- a/src/utils/AddressUtils.ts
+++ b/src/utils/AddressUtils.ts
@@ -212,8 +212,8 @@ export abstract class Address {
   }
 
   // Checks if the other address is equivalent to this address.
-  eq(other: Address): boolean {
-    return this.toString() === other.toString();
+  eq(other?: Address): boolean {
+    return this.toString() === other?.toString();
   }
 
   // Compares Addresses by first converting them to BigNumbers.