diff --git a/fhevm/params.go b/fhevm/params.go
index 1147c15..82e9743 100644
--- a/fhevm/params.go
+++ b/fhevm/params.go
@@ -83,9 +83,9 @@ func DefaultGasCosts() GasCosts {
 			FheUint32: 130000,
 		},
 		FheDecrypt: map[FheUintType]uint64{
-			FheUint8:  600,
-			FheUint16: 700,
-			FheUint32: 800,
+			FheUint8:  500000,
+			FheUint16: 500000,
+			FheUint32: 500000,
 		},
 		FheBitwiseOp: map[FheUintType]uint64{
 			FheUint8:  20000,
@@ -146,9 +146,9 @@ func DefaultGasCosts() GasCosts {
 		},
 		// TODO: These will change once we have an FHE-based random generaration.
 		FheRand: map[FheUintType]uint64{
-			FheUint8:  EvmNetSstoreInitGas + 1000,
-			FheUint16: EvmNetSstoreInitGas + 2000,
-			FheUint32: EvmNetSstoreInitGas + 3000,
+			FheUint8:  EvmNetSstoreInitGas + 100000,
+			FheUint16: EvmNetSstoreInitGas + 200000,
+			FheUint32: EvmNetSstoreInitGas + 400000,
 		},
 		// TODO: As of now, only support FheUint8. All optimistic require predicates are
 		// downcast to FheUint8 at the solidity level. Eventually move to ebool.