diff --git a/Dockerfile b/Dockerfile
index 0103dd6..3449840 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,3 +1,3 @@
-FROM nginx:stable-alpine
+FROM nginx:1.31.1-alpine
 COPY index.html /usr/share/nginx/html/index.html
 EXPOSE 80
diff --git a/index.html b/index.html
index df77326..67c51bf 100644
--- a/index.html
+++ b/index.html
@@ -39,7 +39,7 @@
   <div class="box">
     <h1>It works!</h1>
     <p>Pipeline git → build → push Harbor → sign cosign → deploy Portainer OK</p>
-    <div class="ts">2026-06-06 12:13:49 UTC</div>
+    <div class="ts">2026-06-06 12:15:45 UTC</div>
   </div>
 </body>
 </html>