diff --git a/lib/async.js b/lib/async.js
index 46992d5..e5eac8c 100644
--- a/lib/async.js
+++ b/lib/async.js
@@ -68,7 +68,7 @@ function setupAsync(opts, required) {
 function checkGenerators(opts, required) {
   /* jshint evil: true */
   try {
-    eval('(function*(){})()');
+    (new Function('(function*(){})()'))();
     return true;
   } catch(e) {
     /* istanbul ignore next */
@@ -80,7 +80,7 @@ function checkGenerators(opts, required) {
 function checkAsyncFunction(opts, required) {
   /* jshint evil: true */
   try {
-    eval('(async function(){})()');
+    (new Function('(async function(){})()'))();
     /* istanbul ignore next */
     return true;
   } catch(e) {
diff --git a/package.json b/package.json
index 9da4f40..3452d0d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ajv",
-  "version": "4.7.1",
+  "version": "4.7.2",
   "description": "Another JSON Schema Validator",
   "main": "lib/ajv.js",
   "webpack": "dist/ajv.bundle.js",