diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index e14a93f..97f621b 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -18,7 +18,8 @@
             android:name=".MainActivity"
             android:exported="true"
             android:label="@string/app_name"
-            android:theme="@style/Theme.LunaTracker">
+            android:theme="@style/Theme.LunaTracker"
+            android:screenOrientation="portrait">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />