diff --git a/contrib/devtools/chainparams/abc/chainparams_main.txt b/contrib/devtools/chainparams/abc/chainparams_main.txt
index 2bc7dd071..01a8b28c1 100644
--- a/contrib/devtools/chainparams/abc/chainparams_main.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_main.txt
@@ -1,4 +1,4 @@
-00000000000000000d1789bf5cddd105c6bfbb663c75bb0c168e8e3fab480ee2
-0000000000000000000000000000000000000000015cad57554c78f925bb8158
+0000000000000000117629462f885360fc54ec95d12d9520d0b8f94dfada80c4
+0000000000000000000000000000000000000000015cbe3977b34d80426d66e7
 210
 3
diff --git a/contrib/devtools/chainparams/abc/chainparams_test.txt b/contrib/devtools/chainparams/abc/chainparams_test.txt
index a031376d8..c88da5b5a 100644
--- a/contrib/devtools/chainparams/abc/chainparams_test.txt
+++ b/contrib/devtools/chainparams/abc/chainparams_test.txt
@@ -1,4 +1,4 @@
-000000000009aa34b8a1d2868634d9df03a47c8b6f733fcc0ddcf4c92f3db0bb
-00000000000000000000000000000000000000000000006e90c18fe2fd033895
+000000000000ad7dba7d4b9ecb164df18c2ee2fda3f87f863538adbbdc879039
+00000000000000000000000000000000000000000000006e90d30ce7af38d7ce
 55
 2
diff --git a/src/networks/abc/chainparamsconstants.cpp b/src/networks/abc/chainparamsconstants.cpp
index c5daa86cc..b5a140569 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("00000000000000000d1789bf5cddd105c6bfbb663c75bb0c168e8e3fab480ee2");
-    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015cad57554c78f925bb8158");
+    const BlockHash MAINNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("0000000000000000117629462f885360fc54ec95d12d9520d0b8f94dfada80c4");
+    const uint256 MAINNET_MINIMUM_CHAIN_WORK = uint256S("0000000000000000000000000000000000000000015cbe3977b34d80426d66e7");
     const uint64_t MAINNET_ASSUMED_BLOCKCHAIN_SIZE = 210;
     const uint64_t MAINNET_ASSUMED_CHAINSTATE_SIZE = 3;
 
-    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000009aa34b8a1d2868634d9df03a47c8b6f733fcc0ddcf4c92f3db0bb");
-    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e90c18fe2fd033895");
+    const BlockHash TESTNET_DEFAULT_ASSUME_VALID = BlockHash::fromHex("000000000000ad7dba7d4b9ecb164df18c2ee2fda3f87f863538adbbdc879039");
+    const uint256 TESTNET_MINIMUM_CHAIN_WORK = uint256S("00000000000000000000000000000000000000000000006e90d30ce7af38d7ce");
     const uint64_t TESTNET_ASSUMED_BLOCKCHAIN_SIZE = 55;
     const uint64_t TESTNET_ASSUMED_CHAINSTATE_SIZE = 2;
 } // namespace ChainParamsConstants