diff --git a/package.json b/package.json
index 837f45ff..c00d4506 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "rimraf": "^2.5.4",
     "semver": "^5.1.0",
     "tslint": "^5.0.0",
-    "tslint-config-standard": "^6.0.1",
+    "tslint-config-standard": "^7.0.0",
     "typescript": "^2.4.1"
   },
   "dependencies": {
diff --git a/src/index.ts b/src/index.ts
index aaf466dd..f2003318 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -463,7 +463,7 @@ function readConfig (compilerOptions: any, project: string | boolean | undefined
   }
 
   if (typeof ts.parseJsonConfigFileContent === 'function') {
-    return fixConfig(ts.parseJsonConfigFileContent(result.config, ts.sys, basePath, undefined, configPath as string), ts)
+    return fixConfig(ts.parseJsonConfigFileContent(result.config, ts.sys, basePath, undefined, configPath), ts)
   }
 
   throw new TypeError('Could not find a compatible `parseConfigFile` function')