diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index 22a750df0..776f73035 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-000000000000000007cd5f02a0ecaa505bd47e2705f8075c60e5eb6db2b70542
-0000000000000000000000000000000000000000015a94a09e35b1bbdd8718c1
+000000000000000014703ac328483aa053c45d22caa6a1492fc70ff7fba4ed0b
+0000000000000000000000000000000000000000015ad8d30c0779a51b2d0e2d
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index cc64cf2af..8027bde88 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-0000000000088621965147bb69c203edca8dda2c5735ca28e60628d0358e3047
-00000000000000000000000000000000000000000000006e8892426e914f313c
+00000000000e094ad1f6281f3fb5a95f131a55f2831e7dccc439232dbbad9123
+00000000000000000000000000000000000000000000006e88e26406e73857bf
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index 7b4504b49..0bb5508c1 100644
--- a/src/networks/abc/chainparamsconstants.cpp
+++ b/src/networks/abc/chainparamsconstants.cpp
@@ -1,18 +1,18 @@
 /**
  * @generated by contrib/devtools/chainparams/generate_chainparams_constants.py
  */
 
 #include <chainparamsconstants.h>
 
 namespace ChainParamsConstants {
-    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000000000007cd5f02a0ecaa505bd47e2705f8075c60e5eb6db2b70542");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015a94a09e35b1bbdd8718c1");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000000000014703ac328483aa053c45d22caa6a1492fc70ff7fba4ed0b");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015ad8d30c0779a51b2d0e2d");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000088621965147bb69c203edca8dda2c5735ca28e60628d0358e3047");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e8892426e914f313c");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000e094ad1f6281f3fb5a95f131a55f2831e7dccc439232dbbad9123");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e88e26406e73857bf");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants