diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index f892c281d..9550f23c5 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-000000000000000008db21640bcb5ffbf480efb6f72192fc7d57c423e14dfac3
-0000000000000000000000000000000000000000015d6167db9b4c8d5a707bb2
+0000000000000000150d426dde5425fe63d208ef3ca750bad08f6b130e9611f8
+0000000000000000000000000000000000000000015d8eee48e5f456342f8b70
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index 56c7110d0..088efc3b4 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-0000000000029740a09e7041d2e04ea7da8b678218c684f7eabfdbfcce5b3f1e
-00000000000000000000000000000000000000000000006e919cbbffa76a5350
+0000000000096807722869386ff0ae0f534af2a30b66d0d0a85f6547808db87f
+00000000000000000000000000000000000000000000006e91cd91f2962a25eb
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index fde118184..35b97fcf2 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("000000000000000008db21640bcb5ffbf480efb6f72192fc7d57c423e14dfac3");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015d6167db9b4c8d5a707bb2");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000000000150d426dde5425fe63d208ef3ca750bad08f6b130e9611f8");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015d8eee48e5f456342f8b70");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000029740a09e7041d2e04ea7da8b678218c684f7eabfdbfcce5b3f1e");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e919cbbffa76a5350");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000096807722869386ff0ae0f534af2a30b66d0d0a85f6547808db87f");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e91cd91f2962a25eb");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants