diff --git a/build/envsetup_milkv.sh b/build/envsetup_milkv.sh
index 299347c21..ec4d5f415 100644
--- a/build/envsetup_milkv.sh
+++ b/build/envsetup_milkv.sh
@@ -777,7 +777,7 @@ function cvi_setup_env()
   export CROSS_COMPILE="$CROSS_COMPILE_64"
 
   # toolchain path
-  CROSS_COMPILE_PATH_64="$TOOLCHAIN_PATH"/gcc/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu
+  CROSS_COMPILE_PATH_64="$TOOLCHAIN_PATH"/gcc/gcc-linaro-7.3.1-2018.05-x86_64_aarch64-linux-gnu
   CROSS_COMPILE_PATH_32="$TOOLCHAIN_PATH"/gcc/gcc-linaro-6.3.1-2017.05-x86_64_arm-linux-gnueabihf
   CROSS_COMPILE_PATH_UCLIBC="$TOOLCHAIN_PATH"/gcc/arm-cvitek-linux-uclibcgnueabihf
   CROSS_COMPILE_PATH_64_NONOS="$TOOLCHAIN_PATH"/gcc/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-elf