diff --git a/contracts/TornadoPool.sol b/contracts/TornadoPool.sol
index 19fa7cc..0968103 100644
--- a/contracts/TornadoPool.sol
+++ b/contracts/TornadoPool.sol
@@ -10,7 +10,7 @@
  * ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
  */
 
-pragma solidity ^0.6.0;
+pragma solidity ^0.7.0;
 pragma experimental ABIEncoderV2;
 
 interface IVerifier {
@@ -50,7 +50,7 @@ contract TornadoPool {
     IVerifier _verifier2,
     IVerifier _verifier16,
     bytes32 _currentRoot
-  ) public {
+  ) {
     verifier2 = _verifier2;
     verifier16 = _verifier16;
     currentRoot = _currentRoot;
diff --git a/hardhat.config.js b/hardhat.config.js
index e2e5c24..06538dd 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -3,7 +3,7 @@ require('dotenv').config()
 
 const config = {
   solidity: {
-    version: '0.6.12',
+    version: '0.7.6',
     settings: {
       optimizer: {
         enabled: true,
diff --git a/package.json b/package.json
index 1731091..e75482e 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "ffjavascript": "^0.2.36",
     "fixed-merkle-tree": "^0.5.1",
     "hardhat": "^2.3.0",
-    "snarkjs": "git+https://github.com/tornadocash/snarkjs.git#c103e3bf10e95e2e9bbf0f7952ed13812f8e39d3",
+    "snarkjs": "git+https://github.com/tornadocash/snarkjs.git#616c2d30699f28c8f3ab737b877402ccbb604cfe",
     "tmp-promise": "^3.0.2"
   },
   "devDependencies": {