diff --git a/_data/committee.yml b/_data/committee.yml
index 7c33830..51bb414 100644
--- a/_data/committee.yml
+++ b/_data/committee.yml
@@ -82,7 +82,7 @@ speakers:
     image:  hori.jpg
     affiliation: Toho University
   - name: "Sun Zhe"
-    image:  sunzhe.jpg
+    image:  sunzhe.jpeg
     affiliation: Juntendo University
   - name: "Akifumi Hagiwara"
     image:  akifumi.png