diff --git a/package.json b/package.json
index b0f37a1..cd07a9a 100644
--- a/package.json
+++ b/package.json
@@ -16,15 +16,15 @@
   "license": "MIT",
   "author": "Chunpeng Huo",
   "devDependencies": {
-    "@babel/core": "^7.14.8",
-    "@babel/preset-env": "^7.14.8",
-    "@babel/register": "^7.14.5",
+    "@babel/core": "^7.15.0",
+    "@babel/preset-env": "^7.15.0",
+    "@babel/register": "^7.15.3",
     "@babel/cli": "^7.14.8",
-    "@vercel/ncc": "^0.29.0",
+    "@vercel/ncc": "^0.29.2",
     "babel-eslint": "^10.1.0",
-    "eslint": "^7.31.0",
+    "eslint": "^7.32.0",
     "standard-changelog": "^2.0.27",
-    "tape": "^5.2.2"
+    "tape": "^5.3.1"
   },
   "scripts": {
     "prebuild": "ncc build src/index.js -m -e contextual-proxy -e scoped-eval -e lodash -o packed",
@@ -44,8 +44,8 @@
     "index.d.ts"
   ],
   "dependencies": {
-    "contextual-proxy": "^0.2.0",
+    "contextual-proxy": "^0.2.2",
     "lodash": "^4.17.21",
-    "scoped-eval": "^0.3.0"
+    "scoped-eval": "^0.4.0"
   }
 }
diff --git a/src/value-evaluator.js b/src/value-evaluator.js
index b2015bf..f9caf32 100644
--- a/src/value-evaluator.js
+++ b/src/value-evaluator.js
@@ -22,7 +22,7 @@ export default function (input, stringInterpolation) {
     const func = build(input, stringInterpolation);
     return scope => {
       try {
-        return func.call(scope);
+        return func(scope);
       } catch (e) {
         throw new Error(`Failed to execute expression: ${JSON.stringify(input)}\n${e.message}`);
       }
@@ -45,7 +45,7 @@ export default function (input, stringInterpolation) {
       const get = expression => {
         const func = build(expression);
         try {
-          return func.call(scope);
+          return func(scope);
         } catch (e) {
           throw new Error(`Failed to execute expression: ${JSON.stringify(input)}\n${e.message}`);
         }