diff --git a/.travis.yml b/.travis.yml
index d29054d..233c35e 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ group: deprecated-2017Q4
 language: bash
 before_script:
 - sudo apt-get update -qq
-- sudo apt-get install make curl zip unzip check -qq
+- sudo apt-get install make curl bsdtar check -qq
 script:
 - make
 notifications:
diff --git a/README.md b/README.md
index 2872527..87346e7 100644
--- a/README.md
+++ b/README.md
@@ -75,7 +75,7 @@ Usage :
 ## How-to-Build
 AlpineWSL can build on GNU/Linux or WSL.
 
-`curl`,`zip`,`unzip`,`tar`(gnu) and `sudo` is required for build.
+`curl`,`bsdtar`,`tar`(gnu) and `sudo` is required for build.
 ```shell
 $ make
 ```