diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index 8be9243..2299794 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -2735,7 +2735,7 @@
         }
 
         private final class UpgradeController {
-            private static final int SETTINGS_VERSION = 137;
+            private static final int SETTINGS_VERSION = 138;
 
             private final int mUserId;
 
@@ -3187,6 +3187,18 @@
 
                     currentVersion = 137;
                 }
+                if (currentVersion == 137) {
+                    // Version 138: Settings.Secure#INSTALL_NON_MARKET_APPS is deprecated and its
+                    // default value set to 1. The user can no longer change the value of this
+                    // setting through the UI.
+                    final SettingsState secureSetting = getSecureSettingsLocked(userId);
+                    if (!mUserManager.hasUserRestriction(
+                            UserManager.DISALLOW_INSTALL_UNKNOWN_SOURCES, UserHandle.of(userId))) {
+                        secureSetting.insertSettingLocked(Settings.Secure.INSTALL_NON_MARKET_APPS,
+                                "1", null, true, SettingsState.SYSTEM_PACKAGE_NAME);
+                    }
+                    currentVersion = 138;
+                }
 
                 if (currentVersion != newVersion) {
                     Slog.wtf("SettingsProvider", "warning: upgrading settings database to version "