diff --git a/BoardConfig.mk b/BoardConfig.mk
index 5b3a341..1675674 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -197,8 +197,8 @@ BOARD_AVB_ENABLE := true
 BOARD_AVB_MAKE_VBMETA_IMAGE_ARGS += --set_hashtree_disabled_flag
 BOARD_AVB_MAKE_VBMETA_IMAGE_ARGS += --flags 2
 BOARD_AVB_VBMETA_SYSTEM := system system_ext product
-BOARD_AVB_VBMETA_SYSTEM_KEY_PATH := external/avb/test/data/testkey_rsa2048.pem
-BOARD_AVB_VBMETA_SYSTEM_ALGORITHM := SHA256_RSA2048
+BOARD_AVB_VBMETA_SYSTEM_KEY_PATH := external/avb/test/data/testkey_rsa4096.pem
+BOARD_AVB_VBMETA_SYSTEM_ALGORITHM := SHA256_RSA4096
 BOARD_AVB_VBMETA_SYSTEM_ROLLBACK_INDEX := $(PLATFORM_SECURITY_PATCH_TIMESTAMP)
 BOARD_AVB_VBMETA_SYSTEM_ROLLBACK_INDEX_LOCATION := 2