diff --git a/contrib/devtools/chainparams/chainparams_main.txt b/contrib/devtools/chainparams/chainparams_main.txt
--- a/contrib/devtools/chainparams/chainparams_main.txt
+++ b/contrib/devtools/chainparams/chainparams_main.txt
@@ -1,2 +1,2 @@
-0000000000000000000b43ebe955f0c936cf2b7b47e3e0010d33f81023b11fdf
-0000000000000000000000000000000000000000012ff34bc7320eb28cb68f54
+0000000000000000016864a65d1e10249bdaaeddc470516b87ef0a8c2a1ec0fa
+0000000000000000000000000000000000000000013138c8df53ebd8cdbe5f05
diff --git a/contrib/devtools/chainparams/chainparams_test.txt b/contrib/devtools/chainparams/chainparams_test.txt
--- a/contrib/devtools/chainparams/chainparams_test.txt
+++ b/contrib/devtools/chainparams/chainparams_test.txt
@@ -1,2 +1,2 @@
 00000000000001e288e74344575ae465bea978221ce56033a5867d670aac7c7f
-000000000000000000000000000000000000000000000058cc06442233c197ea
+0000000000000000000000000000000000000000000000594d3c47cd670b572b
diff --git a/src/chainparamsconstants.h b/src/chainparamsconstants.h
--- a/src/chainparamsconstants.h
+++ b/src/chainparamsconstants.h
@@ -9,11 +9,11 @@
 #include <uint256.h>
 
 namespace ChainParamsConstants {
-    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000000000000b43ebe955f0c936cf2b7b47e3e0010d33f81023b11fdf");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000012ff34bc7320eb28cb68f54");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000000000016864a65d1e10249bdaaeddc470516b87ef0a8c2a1ec0fa");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000013138c8df53ebd8cdbe5f05");
 
     const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000001e288e74344575ae465bea978221ce56033a5867d670aac7c7f");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("000000000000000000000000000000000000000000000058cc06442233c197ea");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000000000594d3c47cd670b572b");
 } // namespace ChainParamsConstants
 
 #endif // BITCOIN_CHAINPARAMSCONSTANTS_H