diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index 56995d81f..9bbb545a8 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-0000000000000000014d719a629e6d31914975f0b792b10e89fcfc3e3a4958ad
-00000000000000000000000000000000000000000165581fa27f0288dcc7a6b9
+000000000000000015e1193603554be567ec9b126303e83eaa48dd8065dfc435
+000000000000000000000000000000000000000001656723fdc713032acca56a
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index 434b4d74e..290e18612 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-00000000000035e05d617473549fa0bbbe8ec6b53ce6c289cdddae9ffe22872e
-00000000000000000000000000000000000000000000006e99c2d5aeb74d5697
+000000000710c2d4dc44d2f85dbf2abe2e039ab7842130b7206daaa2ff83027a
+00000000000000000000000000000000000000000000006e99d58ac738957071
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index 728f6efdb..b23c9fdc3 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("0000000000000000014d719a629e6d31914975f0b792b10e89fcfc3e3a4958ad");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000165581fa27f0288dcc7a6b9");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000000000015e1193603554be567ec9b126303e83eaa48dd8065dfc435");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("000000000000000000000000000000000000000001656723fdc713032acca56a");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000035e05d617473549fa0bbbe8ec6b53ce6c289cdddae9ffe22872e");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e99c2d5aeb74d5697");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000710c2d4dc44d2f85dbf2abe2e039ab7842130b7206daaa2ff83027a");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e99d58ac738957071");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants