diff --git a/assets/images/christoph_avatar.jpg b/assets/images/christoph_avatar.jpg
deleted file mode 100644
index 3c8349d..0000000
Binary files a/assets/images/christoph_avatar.jpg and /dev/null differ
diff --git a/assets/images/christoph_avatar.png b/assets/images/christoph_avatar.png
deleted file mode 100644
index 44b1c5f..0000000
Binary files a/assets/images/christoph_avatar.png and /dev/null differ
diff --git a/assets/images/christoph_avatar.webp b/assets/images/christoph_avatar.webp
new file mode 100644
index 0000000..ed9b1a2
Binary files /dev/null and b/assets/images/christoph_avatar.webp differ
diff --git a/assets/images/christoph_small.png b/assets/images/christoph_small.png
deleted file mode 100644
index d71b485..0000000
Binary files a/assets/images/christoph_small.png and /dev/null differ
diff --git a/assets/images/christoph_small.webp b/assets/images/christoph_small.webp
new file mode 100644
index 0000000..f22b7f2
Binary files /dev/null and b/assets/images/christoph_small.webp differ
diff --git a/config/_default/languages.en.toml b/config/_default/languages.en.toml
index d2cb56a..e53d669 100644
--- a/config/_default/languages.en.toml
+++ b/config/_default/languages.en.toml
@@ -8,13 +8,13 @@ title = "Ignorance is bliss..."
   isoCode = "en"
   rtl = false
   dateFormat = "2 January 2006"
-  logo = "images/christoph_small.png"
+  logo = "images/christoph_small.webp"
   description = "Ignorance is bliss..."
 
 [params.author]
   name = "Christoph Cullmann"
   email = "christoph@cullmann.io"
-  image = "images/christoph_avatar.jpg"
+  image = "images/christoph_avatar.webp"
   headline = "Welcome to Christoph Cullmann's web site"
   bio = "Software Engineer at AbsInt and KDE contributor"
   links = [