diff --git a/lib/protocol/networks.js b/lib/protocol/networks.js
index 57ac26c6..d8eed7d6 100644
--- a/lib/protocol/networks.js
+++ b/lib/protocol/networks.js
@@ -100,7 +100,8 @@ main.checkpointMap = {
   401465: 'eed16cb3e893ed9366f27c39a9ecd95465d02e3ef40e45010000000000000000',
   420000: 'a1ff746b2d42b834cb7d6b8981b09c265c2cabc016e8cc020000000000000000',
   440000: '9bf296b8de5f834f7635d5e258a434ad51b4dbbcf7c08c030000000000000000',
-  450000: '0ba2070c62cd9da1f8cef88a0648c661a411d33e728340010000000000000000'
+  450000: '0ba2070c62cd9da1f8cef88a0648c661a411d33e728340010000000000000000',
+  460000: '8c25fc7e414d3e868d6ce0ec473c30ad44e7e8bc1b75ef000000000000000000'
 };
 
 /**
@@ -109,7 +110,7 @@ main.checkpointMap = {
  * @default
  */
 
-main.lastCheckpoint = 450000;
+main.lastCheckpoint = 460000;
 
 /**
  * @const {Number}
@@ -181,7 +182,7 @@ main.pow = {
    */
 
   chainwork: new BN(
-    '00000000000000000000000000000000000000000045b494a5d30a82d9a52ff4',
+    '00000000000000000000000000000000000000000055c9a5edbc0c72c659b0b2',
     'hex'
   ),
 
@@ -532,7 +533,7 @@ testnet.pow = {
   ),
   bits: 486604799,
   chainwork: new BN(
-    '000000000000000000000000000000000000000000000020291512942d3765fe',
+    '000000000000000000000000000000000000000000000023301a0019bca9e74c',
     'hex'
   ),
   targetTimespan: 14 * 24 * 60 * 60,