diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 28d9f16f..d2f09123 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -100,7 +100,8 @@ main.checkpointMap = {
   420000: 'a1ff746b2d42b834cb7d6b8981b09c265c2cabc016e8cc020000000000000000',
   440000: '9bf296b8de5f834f7635d5e258a434ad51b4dbbcf7c08c030000000000000000',
   450000: '0ba2070c62cd9da1f8cef88a0648c661a411d33e728340010000000000000000',
-  460000: '8c25fc7e414d3e868d6ce0ec473c30ad44e7e8bc1b75ef000000000000000000'
+  460000: '8c25fc7e414d3e868d6ce0ec473c30ad44e7e8bc1b75ef000000000000000000',
+  470000: '89756d1ed75901437300af10d5ab69070a282e729c536c000000000000000000'
 };
 
 /**
@@ -109,7 +110,7 @@ main.checkpointMap = {
  * @default
  */
 
-main.lastCheckpoint = 460000;
+main.lastCheckpoint = 470000;
 
 /**
  * @const {Number}
@@ -182,7 +183,7 @@ main.pow = {
    */
 
   chainwork: new BN(
-    '00000000000000000000000000000000000000000055c9a5edbc0c72c659b0b2',
+    '00000000000000000000000000000000000000000074093f7ecede98cadd3a32',
     'hex'
   ),