diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 8a0bbcb..4ca7fa7 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -57,6 +57,7 @@
                     android:id="@+id/input_passport_number"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
+                    android:inputType="textCapCharacters"
                     android:hint="@string/input_passport_number" />
 
             </com.google.android.material.textfield.TextInputLayout>