diff --git a/course/assets/img/portfolio/7.jpg b/course/assets/img/portfolio/7.jpg
new file mode 100644
index 0000000..f489e69
Binary files /dev/null and b/course/assets/img/portfolio/7.jpg differ
diff --git a/course/index.html b/course/index.html
index 6313b9d..bb0f152 100644
--- a/course/index.html
+++ b/course/index.html
@@ -197,7 +197,7 @@ <h4 class="my-3">範例與專題開發</h4>
                     <div class="col-lg-4 col-sm-6 mb-4 mb-sm-0">
                         <!-- Portfolio item 5-->
                         <div class="portfolio-item" align="center">
-                            <img class="img-fluid" src="assets/img/portfolio/5.jpg" alt="..." />
+                            <img class="img-fluid" src="assets/img/portfolio/7.jpg" alt="..." />
                             <div class="portfolio-caption">
                                 <h4 class="my-3">AI 課程專項證照</h4>
                                 <div class="portfolio-caption-subheading text-muted" style="font-style: normal;">提供學員求職就業、職涯發展、升遷加薪等用途。</div>