diff --git a/core/src/main/java/org/bitcoinj/core/NetworkParameters.java b/core/src/main/java/org/bitcoinj/core/NetworkParameters.java
index 2d53c71ec..1619b495b 100644
--- a/core/src/main/java/org/bitcoinj/core/NetworkParameters.java
+++ b/core/src/main/java/org/bitcoinj/core/NetworkParameters.java
@@ -686,7 +686,9 @@ public static enum ProtocolVersion {
         SMNLE_VERSIONED(70228),
         MNLISTDIFF_VERSION_ORDER(70229),
         MNLISTDIFF_CHAINLOCKS(70230),
-        CURRENT(70230); //testnet is still 70228
+        CORE_20_1(70231),
+        CORE_21(70232),
+        CURRENT(70232); //testnet is still 70228
 
         private final int bitcoinProtocol;