diff --git a/app/proguard-rules.pro b/app/proguard-rules.pro
index 7e234055..3dd2b806 100644
--- a/app/proguard-rules.pro
+++ b/app/proguard-rules.pro
@@ -20,7 +20,6 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 -keep class org.meowcat.edxposed.manager.util.json.**{public *; }
+-keep class org.meowcat.edxposed.manager.xposed.**{public *; }
 -keep class de.robv.android.xposed.installer.**{public *; }
--repackageclasses ''
--allowaccessmodification
--optimizationpasses 9
\ No newline at end of file
+-repackageclasses ''
\ No newline at end of file
diff --git a/app/src/main/java/org/meowcat/edxposed/manager/AboutActivity.java b/app/src/main/java/org/meowcat/edxposed/manager/AboutActivity.java
index f3f6d878..d387a01b 100644
--- a/app/src/main/java/org/meowcat/edxposed/manager/AboutActivity.java
+++ b/app/src/main/java/org/meowcat/edxposed/manager/AboutActivity.java
@@ -46,12 +46,7 @@ public class AboutActivity extends BaseActivity {
                     .setMessage(HtmlCompat.fromHtml(changes, HtmlCompat.FROM_HTML_MODE_LEGACY))
                     .setPositiveButton(android.R.string.ok, null).show());
         }
-
-        try {
-            String version = getPackageManager().getPackageInfo(packageName, 0).versionName;
-            binding.appVersion.setText(version);
-        } catch (PackageManager.NameNotFoundException ignored) {
-        }
+        binding.appVersion.setText(BuildConfig.VERSION_NAME);
 
         binding.licensesView.setOnClickListener(v12 -> startActivity(new Intent(this, OssLicensesMenuActivity.class)));