Fix mocha version in parser

package.json

@@ -28,7 +28,7 @@
     "req-cwd": "^1.0.1",
     "shelljs": "^0.7.4",
     "sol-explore": "^1.6.2",
-    "solidity-parser-sc": "0.4.9",
+    "solidity-parser-sc": "0.4.10",
     "tree-kill": "^1.2.0",
     "web3": "^0.18.4"
   },
@@ -43,9 +43,9 @@
     "ethereumjs-util": "^5.0.1",
     "ethereumjs-vm": "https://github.com/sc-forks/ethereumjs-vm-sc.git#6be86e6f12634b711423203e6744cafe07c38e69",
     "merkle-patricia-tree": "~2.1.2",
-    "mocha": "^3.1.0",
+    "mocha": "^4.1.0",
     "request": "^2.81.0",
     "solc": "0.4.23",
-    "truffle": "4.1.7"
+    "truffle": "^4.1.8"
   }
 }