diff --git a/core-rust-bridge/src/main/java/com/radixdlt/protocol/ProtocolConfig.java b/core-rust-bridge/src/main/java/com/radixdlt/protocol/ProtocolConfig.java
index 90893680d8..5c834ddd31 100644
--- a/core-rust-bridge/src/main/java/com/radixdlt/protocol/ProtocolConfig.java
+++ b/core-rust-bridge/src/main/java/com/radixdlt/protocol/ProtocolConfig.java
@@ -85,14 +85,16 @@ public record ProtocolConfig(
   public static final String GENESIS_PROTOCOL_VERSION_NAME = "babylon-genesis";
   public static final String ANEMONE_PROTOCOL_VERSION_NAME = "anemone";
   public static final String BOTTLENOSE_PROTOCOL_VERSION_NAME = "bottlenose";
-  public static final String CUTTLEFISH_PROTOCOL_VERSION_NAME = "cuttlefish";
+  public static final String CUTTLEFISH_PART1_PROTOCOL_VERSION_NAME = "cuttlefish";
+  public static final String CUTTLEFISH_PART2_PROTOCOL_VERSION_NAME = "cuttlefish-part2";
 
   public static ImmutableList<String> VERSION_NAMES =
       ImmutableList.of(
           GENESIS_PROTOCOL_VERSION_NAME,
           ANEMONE_PROTOCOL_VERSION_NAME,
           BOTTLENOSE_PROTOCOL_VERSION_NAME,
-          CUTTLEFISH_PROTOCOL_VERSION_NAME);
+          CUTTLEFISH_PART1_PROTOCOL_VERSION_NAME,
+          CUTTLEFISH_PART2_PROTOCOL_VERSION_NAME);
 
   public static final String LATEST_PROTOCOL_VERSION_NAME =
       VERSION_NAMES.get(VERSION_NAMES.size() - 1);
diff --git a/core/src/test/java/com/radixdlt/rev2/protocol/CuttlefishProtocolUpdateTest.java b/core/src/test/java/com/radixdlt/rev2/protocol/CuttlefishProtocolUpdateTest.java
index 276153f9dc..68d2532ca3 100644
--- a/core/src/test/java/com/radixdlt/rev2/protocol/CuttlefishProtocolUpdateTest.java
+++ b/core/src/test/java/com/radixdlt/rev2/protocol/CuttlefishProtocolUpdateTest.java
@@ -88,10 +88,11 @@
 
 public final class CuttlefishProtocolUpdateTest {
   private static final long ENACTMENT_EPOCH = 8;
-  private static final ProtocolConfig IMMEDIATELY_CUTTLEFISH =
-      ProtocolConfig.launchAt(ProtocolConfig.CUTTLEFISH_PROTOCOL_VERSION_NAME);
-  private static final ProtocolConfig CUTTLEFISH_AT_EPOCH =
-      ProtocolConfig.enactAtEpoch(ProtocolConfig.CUTTLEFISH_PROTOCOL_VERSION_NAME, ENACTMENT_EPOCH);
+  private static final ProtocolConfig IMMEDIATELY_CUTTLEFISH_PART2 =
+      ProtocolConfig.launchAt(ProtocolConfig.CUTTLEFISH_PART2_PROTOCOL_VERSION_NAME);
+  private static final ProtocolConfig CUTTLEFISH_PART1_AT_EPOCH =
+      ProtocolConfig.enactAtEpoch(
+          ProtocolConfig.CUTTLEFISH_PART1_PROTOCOL_VERSION_NAME, ENACTMENT_EPOCH);
 
   @Rule public TemporaryFolder folder = new TemporaryFolder();
 
@@ -121,7 +122,7 @@ private DeterministicTest createTest(ProtocolConfig protocolConfig, Module... ex
   @Test
   public void transaction_v2_behaviour_across_cuttlefish() throws ApiException {
     final var coreApiHelper = new CoreApiHelper(Network.INTEGRATIONTESTNET);
-    try (var test = createTest(CUTTLEFISH_AT_EPOCH, coreApiHelper.module())) {
+    try (var test = createTest(CUTTLEFISH_PART1_AT_EPOCH, coreApiHelper.module())) {
       final var stateComputer = test.getInstance(0, RustStateComputer.class);
       test.runUntilState(allAtOrOverEpoch(ENACTMENT_EPOCH - 1));
 
@@ -148,13 +149,13 @@ public void transaction_v2_behaviour_across_cuttlefish() throws ApiException {
 
       // Arrange: Run the protocol update:
       test.runUntilState(
-          allAtExactlyProtocolVersion(ProtocolConfig.CUTTLEFISH_PROTOCOL_VERSION_NAME));
+          allAtExactlyProtocolVersion(ProtocolConfig.CUTTLEFISH_PART1_PROTOCOL_VERSION_NAME));
 
       assertEquals(
-          ProtocolConfig.CUTTLEFISH_PROTOCOL_VERSION_NAME,
+          ProtocolConfig.CUTTLEFISH_PART1_PROTOCOL_VERSION_NAME,
           stateComputer.protocolState().currentProtocolVersion());
       assertEquals(
-          ProtocolConfig.CUTTLEFISH_PROTOCOL_VERSION_NAME,
+          ProtocolConfig.CUTTLEFISH_PART1_PROTOCOL_VERSION_NAME,
           coreApiHelper.getNetworkStatus().getCurrentProtocolVersion());
 
       // Act: Can now submit a new TransactionV2
@@ -189,7 +190,7 @@ public void transaction_v2_behaviour_across_cuttlefish() throws ApiException {
   @Test
   public void protocol_update_process_updates_status_summary() throws ApiException {
     final var coreApiHelper = new CoreApiHelper(Network.INTEGRATIONTESTNET);
-    try (var test = createTest(IMMEDIATELY_CUTTLEFISH, coreApiHelper.module())) {
+    try (var test = createTest(IMMEDIATELY_CUTTLEFISH_PART2, coreApiHelper.module())) {
       test.suppressUnusedWarning();
 
       var latestStateVersion =
@@ -208,7 +209,7 @@ public void protocol_update_process_updates_status_summary() throws ApiException
                   .getNewValue()
                   .getSubstateData();
       assertEquals(
-          ProtocolConfig.CUTTLEFISH_PROTOCOL_VERSION_NAME, latestStatus.getProtocolVersion());
+          ProtocolConfig.CUTTLEFISH_PART2_PROTOCOL_VERSION_NAME, latestStatus.getProtocolVersion());
       assertEquals(ProtocolUpdateStatusType.COMPLETE, latestStatus.getUpdateStatus().getType());
     }
   }