diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index 7c9e5cbe7..274cd9c25 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-00000000000000003caa6ff71ab35b87bb11fd14eef36eecb6b1ed8a72c02008
-00000000000000000000000000000000000000000154ca36cd5196a5ae2ddb57
+0000000000000000395e00ac7f563028b5ca1db9243a3879e9a96a161fbfcfc1
+00000000000000000000000000000000000000000154dc718ada68a34483ca2b
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index 996978652..41d6f90ae 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-0000000003d7fd6c6229e693caff09284feec8238b6ebefffad50e6bdc087428
-00000000000000000000000000000000000000000000006e8310a6a6e1e8923f
+000000000001106d2331a9729f13737f8f81bad157db4025efdfdf97368d109a
+00000000000000000000000000000000000000000000006e83412aec760e6d84
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index 4f744bf7f..9091fefcd 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("00000000000000003caa6ff71ab35b87bb11fd14eef36eecb6b1ed8a72c02008");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000154ca36cd5196a5ae2ddb57");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000000000395e00ac7f563028b5ca1db9243a3879e9a96a161fbfcfc1");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000154dc718ada68a34483ca2b");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000003d7fd6c6229e693caff09284feec8238b6ebefffad50e6bdc087428");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e8310a6a6e1e8923f");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000001106d2331a9729f13737f8f81bad157db4025efdfdf97368d109a");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e83412aec760e6d84");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants