diff --git a/Branch-SDK/src/io/branch/referral/PrefHelper.java b/Branch-SDK/src/io/branch/referral/PrefHelper.java
index <HASH>..<HASH> 100644
--- a/Branch-SDK/src/io/branch/referral/PrefHelper.java
+++ b/Branch-SDK/src/io/branch/referral/PrefHelper.java
@@ -25,7 +25,12 @@ import java.util.Collections;
  * preference values.</p>
  */
 public class PrefHelper {
-    
+
+    /**
+     * The base URL to use for all calls to the Branch API.
+     */
+    private static final String BRANCH_BASE_URL = "https://api2.branch.io/";
+
     /**
      * {@link Boolean} value that enables/disables Branch developer external debug mode.
      */
@@ -177,7 +182,7 @@ public class PrefHelper {
      * API uses.
      */
     public String getAPIBaseUrl() {
-        return "https://api.branch.io/";
+        return BRANCH_BASE_URL;
     }
     
     /**
Changed endpoint to api2.branch.io