diff --git a/build/params_nerpanet.go b/build/params_nerpanet.go
index 6663a9162..3cba64ae2 100644
--- a/build/params_nerpanet.go
+++ b/build/params_nerpanet.go
@@ -42,7 +42,7 @@ const UpgradeOrangeHeight = 300
 const UpgradeTrustHeight = 600
 const UpgradeNorwegianHeight = 201000
 const UpgradeTurboHeight = 203000
-const UpgradeHyperdriveHeight = 999999999
+const UpgradeHyperdriveHeight = 379178
 
 func init() {
 	// Minimum block production power is set to 4 TiB