diff --git a/.codegen.json b/.codegen.json
index 7266d583d..9661db911 100644
--- a/.codegen.json
+++ b/.codegen.json
@@ -1 +1 @@
-{ "engineHash": "06ab9c3", "specHash": "425a724", "version": "5.3.0" }
+{ "engineHash": "3e11b6f", "specHash": "425a724", "version": "5.3.0" }
diff --git a/src/intTest/java/com/box/sdkgen/shieldlists/ShieldListsITest.java b/src/intTest/java/com/box/sdkgen/shieldlists/ShieldListsITest.java
index ee7984dce..119ce87a9 100644
--- a/src/intTest/java/com/box/sdkgen/shieldlists/ShieldListsITest.java
+++ b/src/intTest/java/com/box/sdkgen/shieldlists/ShieldListsITest.java
@@ -61,7 +61,7 @@ public void testCreateGetUpdateDeleteShieldList() {
                 new ShieldListsCreateV2025R0.Builder(
                         shieldListContentEmailName,
                         new ShieldListContentEmailV2025R0.Builder(
-                                Arrays.asList("test@box.com", "test@example.com"))
+                                Arrays.asList("test@boxdemo.com", "test@example.com"))
                             .type(ShieldListContentEmailV2025R0TypeField.EMAIL)
                             .build())
                     .description("A list of things that are shielded")
diff --git a/src/intTest/java/com/box/sdkgen/signrequests/SignRequestsITest.java b/src/intTest/java/com/box/sdkgen/signrequests/SignRequestsITest.java
index a0ab3d6c9..da330468c 100644
--- a/src/intTest/java/com/box/sdkgen/signrequests/SignRequestsITest.java
+++ b/src/intTest/java/com/box/sdkgen/signrequests/SignRequestsITest.java
@@ -29,7 +29,7 @@ public class SignRequestsITest {
 
   @Test
   public void testCreateGetCancelAndListSignRequest() {
-    String signerEmail = String.join("", getUuid(), "@box.com");
+    String signerEmail = String.join("", getUuid(), "@boxdemo.com");
     FileFull fileToSign = uploadNewFile();
     FolderFull destinationFolder = createNewFolder();
     SignRequest createdSignRequest =
@@ -124,8 +124,8 @@ assert dateToString(createdSignRequest.getPrefillTags().get(0).getDateValue())
 
   @Test
   public void testCreateSignRequestWithSignerGroupId() {
-    String signer1Email = String.join("", getUuid(), "@box.com");
-    String signer2Email = String.join("", getUuid(), "@box.com");
+    String signer1Email = String.join("", getUuid(), "@boxdemo.com");
+    String signer2Email = String.join("", getUuid(), "@boxdemo.com");
     FileFull fileToSign = uploadNewFile();
     FolderFull destinationFolder = createNewFolder();
     SignRequest createdSignRequest =