diff --git a/_pages/home.md b/_pages/home.md
index 255fe18a..1479b382 100644
--- a/_pages/home.md
+++ b/_pages/home.md
@@ -7,7 +7,7 @@ published: true
 site-map: true
 permalink: /
 header:
-  overlay_image: /images/people/header-mentored-sprints-smaller.png
+  overlay_image: /images/people/header-mentored-sprints-smaller.webp
   overlay_filter: 0.7
   actions:
     - label: "Submit a Package"
@@ -52,7 +52,7 @@ peer-review:
    <div class="feature__item--left">
       <div class="archive__item">
          <div class="archive__item-teaser">
-            <img src="/images/people/pyopensci-sprint-pycon-2023.png" alt="Image showing 3 people working at 2 computers during a spring at pyCon USA 2023.">
+            <img src="/images/people/pyopensci-sprint-pycon-2023.webp" alt="Image showing 3 people working at 2 computers during a spring at pyCon USA 2023.">
          </div>
          <div class="archive__item-body">
             <h2 class="archive__item-title">Peer Review Mentorship Program</h2>
diff --git a/images/people/header-mentored-sprints-smaller.webp b/images/people/header-mentored-sprints-smaller.webp
new file mode 100644
index 00000000..3bf26118
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diff --git a/images/people/pyopensci-sprint-pycon-2023.webp b/images/people/pyopensci-sprint-pycon-2023.webp
new file mode 100644
index 00000000..20218a14
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