diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index d398022cc..a502f8291 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-000000000000000011e5434513736902c0fff66232b6425085b9cb5436e87c15
-0000000000000000000000000000000000000000015b6d01fcee3d5892733d23
+000000000000000007bf649ddcc42b5e1951eb623b1444c3f3fe7f8eb0297751
+0000000000000000000000000000000000000000015ba509fbb897a97f211434
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index 62caa0eba..d9633fa8c 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-000000000003d2ac8b6cd184d58b3afc59ca99b02605ed2eeb3980c0ec6e8f19
-00000000000000000000000000000000000000000000006e8f786ee87ed9a4df
+000000000000436ac2ca16bf259cca7c729b821e5095cc1ecb4ece5dbd4cc83b
+00000000000000000000000000000000000000000000006e8faa8a2709da8d17
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index 5c35a7e31..f790be7b9 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("000000000000000011e5434513736902c0fff66232b6425085b9cb5436e87c15");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015b6d01fcee3d5892733d23");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000000000007bf649ddcc42b5e1951eb623b1444c3f3fe7f8eb0297751");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015ba509fbb897a97f211434");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000003d2ac8b6cd184d58b3afc59ca99b02605ed2eeb3980c0ec6e8f19");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e8f786ee87ed9a4df");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000000436ac2ca16bf259cca7c729b821e5095cc1ecb4ece5dbd4cc83b");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e8faa8a2709da8d17");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants