diff --git a/services/core/java/com/android/server/pm/InitAppsHelper.java b/services/core/java/com/android/server/pm/InitAppsHelper.java
index c1e3c75223189..4019c15ee5504 100644
--- a/services/core/java/com/android/server/pm/InitAppsHelper.java
+++ b/services/core/java/com/android/server/pm/InitAppsHelper.java
@@ -25,6 +25,7 @@ import static com.android.server.pm.PackageManagerService.SCAN_AS_FACTORY;
 import static com.android.server.pm.PackageManagerService.SCAN_AS_PRIVILEGED;
 import static com.android.server.pm.PackageManagerService.SCAN_AS_SYSTEM;
 import static com.android.server.pm.PackageManagerService.SCAN_BOOTING;
+import static com.android.server.pm.PackageManagerService.SCAN_DROP_CACHE;
 import static com.android.server.pm.PackageManagerService.SCAN_FIRST_BOOT_OR_UPGRADE;
 import static com.android.server.pm.PackageManagerService.SCAN_INITIAL;
 import static com.android.server.pm.PackageManagerService.SCAN_NO_DEX;
@@ -174,6 +175,9 @@ final class InitAppsHelper {
                 if (apexInfo.isFactory) {
                     additionalScanFlag |= SCAN_AS_FACTORY;
                 }
+                if (apexInfo.activeApexChanged) {
+                    additionalScanFlag |= SCAN_DROP_CACHE;
+                }
                 return new ScanPartition(apexInfo.apexDirectory, sp, additionalScanFlag);
             }
         }
diff --git a/services/core/java/com/android/server/pm/InstallPackageHelper.java b/services/core/java/com/android/server/pm/InstallPackageHelper.java
index 8875535971632..8c523a6910795 100644
--- a/services/core/java/com/android/server/pm/InstallPackageHelper.java
+++ b/services/core/java/com/android/server/pm/InstallPackageHelper.java
@@ -74,6 +74,7 @@ import static com.android.server.pm.PackageManagerService.SCAN_AS_VENDOR;
 import static com.android.server.pm.PackageManagerService.SCAN_AS_VIRTUAL_PRELOAD;
 import static com.android.server.pm.PackageManagerService.SCAN_BOOTING;
 import static com.android.server.pm.PackageManagerService.SCAN_DONT_KILL_APP;
+import static com.android.server.pm.PackageManagerService.SCAN_DROP_CACHE;
 import static com.android.server.pm.PackageManagerService.SCAN_FIRST_BOOT_OR_UPGRADE;
 import static com.android.server.pm.PackageManagerService.SCAN_IGNORE_FROZEN;
 import static com.android.server.pm.PackageManagerService.SCAN_INITIAL;
@@ -154,6 +155,7 @@ import com.android.server.pm.dex.ArtManagerService;
 import com.android.server.pm.dex.DexManager;
 import com.android.server.pm.dex.DexoptOptions;
 import com.android.server.pm.dex.ViewCompiler;
+import com.android.server.pm.parsing.PackageCacher;
 import com.android.server.pm.parsing.PackageParser2;
 import com.android.server.pm.parsing.pkg.AndroidPackage;
 import com.android.server.pm.parsing.pkg.AndroidPackageUtils;
@@ -3455,6 +3457,11 @@ final class InstallPackageHelper {
                 // Ignore entries which are not packages
                 continue;
             }
+            if ((scanFlags & SCAN_DROP_CACHE) != 0) {
+                final PackageCacher cacher = new PackageCacher(mPm.getCacheDir());
+                Log.w(TAG, "Dropping cache of " + file.getAbsolutePath());
+                cacher.cleanCachedResult(file);
+            }
             parallelPackageParser.submit(file, parseFlags);
             fileCount++;
         }
diff --git a/services/core/java/com/android/server/pm/PackageManagerService.java b/services/core/java/com/android/server/pm/PackageManagerService.java
index 896e634df0215..88ee4c7880625 100644
--- a/services/core/java/com/android/server/pm/PackageManagerService.java
+++ b/services/core/java/com/android/server/pm/PackageManagerService.java
@@ -374,8 +374,9 @@ public class PackageManagerService implements PackageSender, TestUtilityService
     static final int SCAN_AS_SYSTEM_EXT = 1 << 21;
     static final int SCAN_AS_ODM = 1 << 22;
     static final int SCAN_AS_APK_IN_APEX = 1 << 23;
-    static final int SCAN_AS_FACTORY = 1 << 24;
-    static final int SCAN_AS_APEX = 1 << 25;
+    static final int SCAN_DROP_CACHE = 1 << 24;
+    static final int SCAN_AS_FACTORY = 1 << 25;
+    static final int SCAN_AS_APEX = 1 << 26;
 
     @IntDef(flag = true, prefix = { "SCAN_" }, value = {
             SCAN_NO_DEX,