diff --git a/content/en/_index.md b/content/en/_index.md
index d55d0cb79..edc8bb2fc 100644
--- a/content/en/_index.md
+++ b/content/en/_index.md
@@ -194,5 +194,5 @@ section6:
   joinTitle: Join the Revolution, Partner with KubeSphere Container Platform
   joinContent: We look forward to your joining KubeSphere partner program to improve both ecosystems and grow your business.
   joinLink: partner/
-  image: /images/home/certification.jpg
+  image: /images/home/certification.png
 ---
diff --git a/content/tr/_index.md b/content/tr/_index.md
index ee2a9f63c..a55e56c91 100644
--- a/content/tr/_index.md
+++ b/content/tr/_index.md
@@ -169,5 +169,5 @@ section6:
   btnLink:
   link:
   linkContent: Logonuzun burada yer almasını ister misiniz? Hemen istek gönderin. →
-  image: /images/home/certification.jpg
+  image: /images/home/certification.png
 ---
diff --git a/content/zh/_index.md b/content/zh/_index.md
index 6f9d173ff..7ba977c6b 100644
--- a/content/zh/_index.md
+++ b/content/zh/_index.md
@@ -192,5 +192,5 @@ section6:
   joinTitle: 加入 KubeSphere 社区合作伙伴计划
   joinContent: 我们非常期待您加入 KubeSphere 社区合作伙伴计划，共同完善各自的生态，加速您的业务增长。
   joinLink: partner/
-  image: /images/home/certification.jpg
+  image: /images/home/certification.png
 ---
diff --git a/static/images/home/certification.png b/static/images/home/certification.png
new file mode 100644
index 000000000..24040c088
Binary files /dev/null and b/static/images/home/certification.png differ