diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index f28e27db0..d3c984ae1 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-0000000000000000116b6c4615a18eb6aaf73b1ab699c85a6318639bdf06db00
-0000000000000000000000000000000000000000016614dd024bc57f2d90fed5
+0000000000000000125b5012e9a82cd9de3c0a1247f5fab8a8d7bdaae2306028
+0000000000000000000000000000000000000000016647915f3774550485c2f2
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index 5433e1fea..043acceac 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-00000000000e5fd03f75fe44d2ee151f145f06704e118948ea78f98247df0a38
-00000000000000000000000000000000000000000000006e9a968d349f743a21
+00000000000794ecf56b77cfd8fb238a2f00754c04526364ff031588443be760
+00000000000000000000000000000000000000000000006e9ae0a7e12bb62ebb
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index 123acda4d..7b2cf7d6e 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("0000000000000000116b6c4615a18eb6aaf73b1ab699c85a6318639bdf06db00");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000016614dd024bc57f2d90fed5");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000000000125b5012e9a82cd9de3c0a1247f5fab8a8d7bdaae2306028");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000016647915f3774550485c2f2");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000e5fd03f75fe44d2ee151f145f06704e118948ea78f98247df0a38");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e9a968d349f743a21");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000794ecf56b77cfd8fb238a2f00754c04526364ff031588443be760");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e9ae0a7e12bb62ebb");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants