diff --git a/src/kernel/chainparams.cpp b/src/kernel/chainparams.cpp
index 14c444d5ad..5e775dd0f0 100644
--- a/src/kernel/chainparams.cpp
+++ b/src/kernel/chainparams.cpp
@@ -440,7 +440,7 @@ class CRegTestParams : public CChainParams
         consensus.signet_challenge.clear();
         consensus.nMaxReorganizationDepth = 50;
         consensus.CSVHeight = 1;
-        consensus.SegwitHeight = std::numeric_limits<int>::max();
+        consensus.SegwitHeight = 1;
         consensus.MinBIP9WarningHeight = 0;
         consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
         consensus.posLimit = uint256S("00000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
@@ -460,8 +460,8 @@ class CRegTestParams : public CChainParams
 
         // Deployment of SegWit (BIP141, BIP143, and BIP147)
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
-        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
-        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
+        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
+        consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 0;
         consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].min_activation_height = 0; // No activation delay
 
         // Deployment of Taproot (BIPs 340-342)