diff --git a/native/jni/Application.mk b/native/jni/Application.mk
index 338821cd6..f25c26f36 100644
--- a/native/jni/Application.mk
+++ b/native/jni/Application.mk
@@ -13,5 +13,4 @@ ifdef B_BB
 APP_SHORT_COMMANDS := true
 NDK_TOOLCHAIN_VERSION := 4.9
 APP_PLATFORM := android-21
-APP_CFLAGS += -Wno-implicit-function-declaration
 endif
diff --git a/native/jni/external/busybox b/native/jni/external/busybox
index e0e3c284a..13c70496b 160000
--- a/native/jni/external/busybox
+++ b/native/jni/external/busybox
@@ -1 +1 @@
-Subproject commit e0e3c284ab280b68400249a5ca30b6f5ba2327ae
+Subproject commit 13c70496b49380c66ab8fbd6fcfcccb40ca06f60