diff --git a/src/kernel/chainparams.cpp b/src/kernel/chainparams.cpp
index 5e775dd0f0..5d9ebc38e6 100644
--- a/src/kernel/chainparams.cpp
+++ b/src/kernel/chainparams.cpp
@@ -229,8 +229,8 @@ class CTestNetParams : 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 = 1718150400; // Wed Jun 12 2024 00:00:00 GMT+0000
+        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)