diff --git a/apps/common/mobile/lib/view/About.jsx b/apps/common/mobile/lib/view/About.jsx
index cb6035fa78..a2fc8d61f7 100644
--- a/apps/common/mobile/lib/view/About.jsx
+++ b/apps/common/mobile/lib/view/About.jsx
@@ -120,6 +120,7 @@ const PageAbout = props => {
 
 const About = inject("storeAppOptions")(observer(PageAbout));
 About.appVersion = () => (__PRODUCT_VERSION__);
+About.compareVersions = () => /d$/.test(__PRODUCT_VERSION__);
 
 
 export default About;
\ No newline at end of file
diff --git a/apps/documenteditor/mobile/src/controller/Main.jsx b/apps/documenteditor/mobile/src/controller/Main.jsx
index 45e56bb104..85c2542493 100644
--- a/apps/documenteditor/mobile/src/controller/Main.jsx
+++ b/apps/documenteditor/mobile/src/controller/Main.jsx
@@ -483,7 +483,7 @@ class MainController extends Component {
         if (this.changeServerVersion) return true;
         const _t = this._t;
 
-        if (About.appVersion() !== buildVersion && !window.compareVersions) {
+        if (About.appVersion() !== buildVersion && !About.compareVersions()) {
             this.changeServerVersion = true;
             f7.dialog.alert(
                 _t.errorServerVersion,
diff --git a/vendor/framework7-react/build/webpack.config.js b/vendor/framework7-react/build/webpack.config.js
index 10daaf4419..d0ca26d720 100644
--- a/vendor/framework7-react/build/webpack.config.js
+++ b/vendor/framework7-react/build/webpack.config.js
@@ -160,7 +160,7 @@ module.exports = {
     new webpack.DefinePlugin({
       'process.env.NODE_ENV': JSON.stringify(env),
       'process.env.TARGET': JSON.stringify(target),
-      __PRODUCT_VERSION__: JSON.stringify(process.env.PRODUCT_VERSION ? process.env.PRODUCT_VERSION : '6.2.0'),
+      __PRODUCT_VERSION__: JSON.stringify(process.env.PRODUCT_VERSION ? process.env.PRODUCT_VERSION : '6.2.0d'),
       __PUBLISHER_ADDRESS__: JSON.stringify('20A-12 Ernesta Birznieka-Upisha street, Riga, Latvia, EU, LV-1050'),
       __SUPPORT_EMAIL__: JSON.stringify('support@onlyoffice.com'),
       __PUBLISHER_PHONE__: JSON.stringify('+371 633-99867'),