diff --git a/nimbus/rpc/rpc_utils.nim b/nimbus/rpc/rpc_utils.nim
index 9b7473f39..533f9b617 100644
--- a/nimbus/rpc/rpc_utils.nim
+++ b/nimbus/rpc/rpc_utils.nim
@@ -76,6 +76,9 @@ proc calculateMedianGasPrice*(chain: CoreDbRef): GasInt
     else:
       result = prices[middle]
 
+  const minGasPrice = 30_000_000_000.GasInt
+  result = max(result, minGasPrice)
+
 proc unsignedTx*(tx: TransactionArgs, chain: CoreDbRef, defaultNonce: AccountNonce): Transaction
     {.gcsafe, raises: [CatchableError].} =
   if tx.to.isSome: