diff --git a/public/photos/sebastian_hoffmann.jpg b/public/photos/sebastian_hoffmann.jpg
new file mode 100644
index 0000000..d350547
Binary files /dev/null and b/public/photos/sebastian_hoffmann.jpg differ
diff --git a/public/photos/sebastian_hoffmann.webp b/public/photos/sebastian_hoffmann.webp
deleted file mode 100644
index 0c67cec..0000000
Binary files a/public/photos/sebastian_hoffmann.webp and /dev/null differ
diff --git a/src/app/team/cards/Sebastian.mdx b/src/app/team/cards/Sebastian.mdx
index adcc836..4fafc07 100644
--- a/src/app/team/cards/Sebastian.mdx
+++ b/src/app/team/cards/Sebastian.mdx
@@ -2,7 +2,7 @@
 <CardProfile 
     name="Sebastian Hoffmann"
     identifier="PhD Candidate"
-    photo="/photos/sebastian_hoffmann.webp"
+    photo="/photos/sebastian_hoffmann.jpg"
     email="shoffmann@bgc-jena.mpg.de"
     partner='MPI'
     socials={[