diff --git a/.drone.yml b/.drone.yml
index d202ae9..0084d8f 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -32,7 +32,8 @@ steps:
   image: plugins/s3-cache
   settings:
     pull: true
-    endpoint: https://imi415-ci-artifacts.s3.ap-northeast-1.wasabisys.com
+    endpoint: https://s3.ap-northeast-1.wasabisys.com
+    root: "imi415-ci-artifacts"
     access_key:
       from_secret: cache_ak
     secret_key:
@@ -48,7 +49,8 @@ steps:
   image: plugins/s3-cache
   settings:
     pull: true
-    endpoint: https://imi415-ci-artifacts.s3.ap-northeast-1.wasabisys.com
+    endpoint: https://s3.ap-northeast-1.wasabisys.com
+    root: "imi415-ci-artifacts"
     access_key:
       from_secret: cache_ak
     secret_key:
@@ -94,7 +96,8 @@ steps:
   image: plugins/s3-cache
   settings:
     pull: true
-    endpoint: https://imi415-ci-artifacts.s3.ap-northeast-1.wasabisys.com
+    endpoint: https://s3.ap-northeast-1.wasabisys.com
+    root: "imi415-ci-artifacts"
     access_key:
       from_secret: cache_ak
     secret_key:
@@ -110,7 +113,8 @@ steps:
   image: plugins/s3-cache
   settings:
     pull: true
-    endpoint: https://imi415-ci-artifacts.s3.ap-northeast-1.wasabisys.com
+    endpoint: https://s3.ap-northeast-1.wasabisys.com
+    root: "imi415-ci-artifacts"
     access_key:
       from_secret: cache_ak
     secret_key: