diff --git a/.babelrc b/.babelrc
index 391d7ab..cd16c35 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,7 +1,7 @@
 {
   "presets": [["@babel/preset-env", {
     "useBuiltIns": "entry",
-    "modules": "auto",
+    "modules": "cjs",
     "loose": true,
     "targets": {
       "ie": "8",
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 97fe14b..b3741d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Bowser Changelog
 
+### 2.5.2 (July 17, 2019)
+- [FIX] Fixes the bug undefined method because of failed build (#335)
+
 ### 2.5.1 (July 17, 2019)
 - [FIX] Fixes the bug with a custom Error class (#335)
 - [FIX] Fixes the settings for Babel to reduce the bundle size (#259)
diff --git a/package-lock.json b/package-lock.json
index b0c1634..1b75b05 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "bowser",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 757a4a7..cde9fd3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "bowser",
-  "version": "2.5.1",
+  "version": "2.5.2",
   "description": "Lightweight browser detector",
   "keywords": [
     "browser",