diff --git a/package.json b/package.json
index 8f3b383..720d5b4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@spankchain-dev/spankbank-web3",
-  "version": "0.1.5-rc1",
+  "version": "0.1.5-rc2",
   "main": "dist/spankbank.js",
   "types": "dist/@types/spankbank.d.ts",
   "scripts": {
diff --git a/spankbank.ts b/spankbank.ts
index b3b094b..3deb707 100644
--- a/spankbank.ts
+++ b/spankbank.ts
@@ -368,7 +368,7 @@ export abstract class SmartContractWrapper {
 
         let options = { ...this.callOptions }
         if (!this.callOptions.gasPrice)
-            options.gasPrice = spankBankContract.estimateGas(contractFuncName)
+            options.gasPrice = await provider.gasPrice()
 
         const result = await bankWithSigner[contractFuncName](...args)
         cb(null, result)