diff --git a/holi.mk b/holi.mk
index 8a25436..cfef400 100644
--- a/holi.mk
+++ b/holi.mk
@@ -24,5 +24,17 @@ PRODUCT_PACKAGES += \
     checkpoint_gc \
     otapreopt_script
 
+# Enable virtual A/B OTA
+$(call inherit-product, $(SRC_TARGET_DIR)/product/virtual_ab_ota.mk)
+
+# Update engine
+PRODUCT_PACKAGES += \
+    update_engine \
+    update_engine_sideload \
+    update_verifier
+
+PRODUCT_PACKAGES_DEBUG += \
+    update_engine_client
+
 # Inherit the proprietary files
 $(call inherit-product, vendor/xiaomi/sm6375-common/sm6375-common-vendor.mk)