diff --git a/src/routes/guides/connect-multiple-repositories-using-tailscale/index.md b/src/routes/guides/connect-multiple-repositories-using-tailscale/index.md
index 293bb82cd7..3752e2a0f7 100644
--- a/src/routes/guides/connect-multiple-repositories-using-tailscale/index.md
+++ b/src/routes/guides/connect-multiple-repositories-using-tailscale/index.md
@@ -4,8 +4,8 @@ date: Friday, 6 May 2022 11:00:00 UTC
 title: Connect Multiple Repositories on Gitpod using Tailscale
 slug: connect-multiple-repositories-using-tailscale
 excerpt: Tailscale’s secure mesh technology based on WireGuard can connect machines securely across the internet, frictionlessly. ✨ This article will show how easy it is to connect Gitpod workspaces over a secure tunnel provided by Tailscale.
-teaserImage: header.png
-image: teaser.png
+teaserImage: header.jpg
+image: teaser.jpg
 ---
 
 <script context="module">
diff --git a/src/routes/guides/set-up-spring-boot-application-remotely-with-gitpod-and-jetBrains-gateway/index.md b/src/routes/guides/set-up-spring-boot-application-remotely-with-gitpod-and-jetBrains-gateway/index.md
index 9989cf4b80..d9f55f9bbd 100644
--- a/src/routes/guides/set-up-spring-boot-application-remotely-with-gitpod-and-jetBrains-gateway/index.md
+++ b/src/routes/guides/set-up-spring-boot-application-remotely-with-gitpod-and-jetBrains-gateway/index.md
@@ -4,8 +4,8 @@ date: Thursday, 28 April 2022 11:00:00 UTC
 title: Set up a Spring Boot Remote Development Environment With JetBrains Gateway and Gitpod
 slug: set-up-spring-boot-application-remotely-with-gitpod-and-jetBrains-gateway
 excerpt: Setting up your first Spring project using JetBrains Gateway and Gitpod.
-teaserImage: teaser.png
-image: header.png
+teaserImage: header.jpg
+image: teaser.jpg
 ---
 
 <script context="module">
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