diff --git a/assets/images/2021/obs.png b/assets/images/2021/obs.png
index 588dbd6..f02b08f 100644
--- a/assets/images/2021/obs.png
+++ b/assets/images/2021/obs.png
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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+size 111512