diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index 363de9ffd..7f254805a 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-000000000000000012f909692571d102ed127456c1f77bd2f94d6fa92db6f2b4
-0000000000000000000000000000000000000000016a4642a63c671069f2bd15
+00000000000000000cd09aa87367046e170af46e387d143b3ec7b76a981a758a
+0000000000000000000000000000000000000000016a708cf81fedf815733107
 211
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index 1c4ecd1c4..a0636649f 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-00000000000a150bcd42f82c4375e34183e46150f325bc8e6c79cadf878e2755
-00000000000000000000000000000000000000000000006e9f83d5cb89b03476
+00000000000138bf21f4b5616efe2453690fc70a61c888fe3c5502b37b0c0f57
+00000000000000000000000000000000000000000000006e9fb725862d2a14d3
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index e17be28f2..c9e44771c 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("000000000000000012f909692571d102ed127456c1f77bd2f94d6fa92db6f2b4");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000016a4642a63c671069f2bd15");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000000000cd09aa87367046e170af46e387d143b3ec7b76a981a758a");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000016a708cf81fedf815733107");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 211;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000a150bcd42f82c4375e34183e46150f325bc8e6c79cadf878e2755");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e9f83d5cb89b03476");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("00000000000138bf21f4b5616efe2453690fc70a61c888fe3c5502b37b0c0f57");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e9fb725862d2a14d3");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants