diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index b758e14a8..ec75507ad 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -294,6 +294,12 @@ public:
             ( 410100, uint256S("0x0000000002c565958f783a24a4ac17cde898ff525e75ed9baf66861b0b9fcada"))
             ( 497000, uint256S("0x0000000000abd333f0acca6ffdf78a167699686d6a7d25c33fca5f295061ffff"))
             ( 525000, uint256S("0x0000000001a36c500378be8862d9bf1bea8f1616da6e155971b608139cc7e39b"))
+            ( 650000, uint256S("0x0000000000a0a3fbbd739fb4fcbbfefff44efffc2064ca69a59d5284a2da26e2"))
+            ( 800000, uint256S("0x00000000013f1f4e5634e896ebdbe63dec115547c1480de0d83c64426f913c27"))
+            (1000000, uint256S("0x000000000062eff9ae053020017bfef24e521a2704c5ec9ead2a4608ac70fc7a"))
+            (1200000, uint256S("0x0000000000347d5011108fdcf667c93e622e8635c94e586556898e41db18d192"))
+            (1400000, uint256S("0x0000000001155ecec0ad3924d47ad476c0a5ed7527b8776f53cbda1a780b9f76"))
+            (1600000, uint256S("0x0000000000aae69fb228f90e77f34c24b7920667eaca726c3a3939536f03dcfc"))
             (1860000, uint256S("0x000000000043a968c78af5fb8133e00e6fe340051c19dd969e53ab62bf3dc22a")),
             1667052073,     // * UNIX timestamp of last checkpoint block
             11768038,       // * total number of transactions between genesis and last checkpoint