diff --git a/app/src/main/java/org/shadowice/flocke/andotp/Activities/MainActivity.java b/app/src/main/java/org/shadowice/flocke/andotp/Activities/MainActivity.java
index 477c649b..ae537d32 100644
--- a/app/src/main/java/org/shadowice/flocke/andotp/Activities/MainActivity.java
+++ b/app/src/main/java/org/shadowice/flocke/andotp/Activities/MainActivity.java
@@ -129,21 +129,6 @@ public class MainActivity extends BaseActivity
         startActivityForResult(introIntent, Constants.INTENT_MAIN_INTRO);
     }
 
-    private void showAndroid21DeprecationNotice() {
-        AlertDialog.Builder builder = new AlertDialog.Builder(this);
-        builder.setTitle(R.string.dialog_title_android21_depreaction)
-                .setMessage(R.string.dialog_msg_android21_deprecation)
-                .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-                    @Override
-                    public void onClick(DialogInterface dialogInterface, int i) {
-                        settings.setAndroid21DeprecationNoticeShown(true);
-                    }
-                })
-                .setCancelable(false)
-                .create()
-                .show();
-    }
-
     public void authenticate(int messageId) {
         AuthMethod authMethod = settings.getAuthMethod();
 
@@ -220,10 +205,6 @@ public class MainActivity extends BaseActivity
            showFirstTimeWarning();
         }
 
-        if (!settings.getAndroid21DeprecationNoticeShown()) {
-            showAndroid21DeprecationNotice();
-        }
-
         speedDial = findViewById(R.id.speedDial);
         speedDial.inflate(R.menu.menu_fab);
 
diff --git a/app/src/main/java/org/shadowice/flocke/andotp/Utilities/Settings.java b/app/src/main/java/org/shadowice/flocke/andotp/Utilities/Settings.java
index e42609b9..539537b2 100644
--- a/app/src/main/java/org/shadowice/flocke/andotp/Utilities/Settings.java
+++ b/app/src/main/java/org/shadowice/flocke/andotp/Utilities/Settings.java
@@ -371,14 +371,6 @@ public class Settings {
         setBoolean(R.string.settings_key_security_backup_warning, value);
     }
 
-    public boolean getAndroid21DeprecationNoticeShown() {
-        return getBoolean(R.string.settings_key_android21_deprecation_notice_shown, false);
-    }
-
-    public void setAndroid21DeprecationNoticeShown(boolean value) {
-        setBoolean(R.string.settings_key_android21_deprecation_notice_shown, value);
-    }
-
     public boolean getSpecialFeatures() {
         return getBoolean(R.string.settings_key_special_features, false);
     }
diff --git a/app/src/main/res/values/settings.xml b/app/src/main/res/values/settings.xml
index cdb0a5c0..f29221c4 100644
--- a/app/src/main/res/values/settings.xml
+++ b/app/src/main/res/values/settings.xml
@@ -64,7 +64,7 @@
     <string name="settings_key_clear_keystore" translatable="false">pref_clear_keystore</string>
 
     <string name="settings_key_last_used_dialog_shown" translatable="false">pref_last_used_dialog_shown</string>
-    <string name="settings_key_android21_deprecation_notice_shown" translatable="false">pref_android21_deprecation_notice_shown</string>
+    <string name="settings_key_android21_deprecation_notice_shown" translatable="false">pref_android21_deprecation_notice_shown</string>    <!-- Deprecated -->
 
     <!-- Default values -->
     <integer name="settings_default_tap_to_reveal_timeout">30</integer>
diff --git a/app/src/main/res/values/strings_main.xml b/app/src/main/res/values/strings_main.xml
index b54cc097..1436472a 100644
--- a/app/src/main/res/values/strings_main.xml
+++ b/app/src/main/res/values/strings_main.xml
@@ -85,7 +85,6 @@
     <string name="dialog_title_used_tokens">Tokens usage</string>
     <string name="dialog_title_keystore_error">KeyStore error</string>
     <string name="dialog_title_qr_code">QR Code</string>
-    <string name="dialog_title_android21_depreaction">Deprecation notice</string>
 
     <string name="dialog_title_enter_password">Enter password</string>
 
@@ -103,12 +102,6 @@
         <b>Any entries that are added will get lost.</b>\n\nTo still be able to use andOTP you can go
         to the <b>Settings</b> and switch the <b>Database encryption</b> to <b>Password / PIN</b>.</string>
 
-    <string name="dialog_msg_android21_deprecation">This will be the last version of andOTP to
-        support Android versions below 5.1 (Lollipop). The increased effort required to maintain a
-        separate storage implementation just for those older versions as well as their low market
-        shares make a continued support infeasible for our small team.\n\nThis message will not be
-        shown again.</string>
-
     <!-- Shortcuts -->
     <string name="shortcut_name_scan_qr">Scan QR code</string>
     <string name="shortcut_name_import_qr">Import QR code</string>