diff --git a/docs/puzzles/3x3x3x3.md b/docs/puzzles/3x3x3x3.md
index 00dbff46..51a4d6dd 100644
--- a/docs/puzzles/3x3x3x3.md
+++ b/docs/puzzles/3x3x3x3.md
@@ -1,7 +1,7 @@
 # 3x3x3x3
 
 !!! info inline end "3x3x3x3"
-    ![3x3x3x3 in Magic Cube 4D](https://cloud.hypercubing.xyz/assets/img/virt/mc4d_3x3x3x3.jpeg)
+    ![3x3x3x3 in Magic Cube 4D](https://cloud.hypercubing.xyz/assets/img/virt/mc4d_3x3x3x3.png)
 
     **Shape:** Tesseract