diff --git a/.drone.yml b/.drone.yml
index f6f7614..8b5a03c 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,7 +6,7 @@ steps:
   - name: Modify-Amazon-Links
     image: cibuilds/hugo:0.62.1
     commands:
-      - grep -l -r ecx.images-amazon.com content/ | sort | uniq | xargs -t --no-run-if-empty sed -ie "s/http:\/ / ecx.images-amazon.com/https:\/ / images-na.ssl-images-amazon.com/g"
+      - grep -l -r ecx.images-amazon.com content/ | sort | uniq | xargs -t --no-run-if-empty sed -ie "s/http:\/\/ecx.images-amazon.com/https:\/\/images-na.ssl-images-amazon.com/g"
       - grep -l -r "http://www.amazon.co.jp/exec" content/ | sort | uniq | xargs -t --no-run-if-empty sed -i -e "s/http:\/ / www.amazon.co.jp\/exec/https:\/ / www.amazon.co.jp\/exec/g"
 
 trigger: