diff --git a/docs/library/rule-sets/10_reddit-new-layout/cover.png b/docs/library/rule-sets/10_reddit-new-layout/cover.png
deleted file mode 100644
index bb3ce57..0000000
Binary files a/docs/library/rule-sets/10_reddit-new-layout/cover.png and /dev/null differ
diff --git a/docs/library/rule-sets/10_reddit-new-layout/cover.webp b/docs/library/rule-sets/10_reddit-new-layout/cover.webp
new file mode 100644
index 0000000..db71d69
Binary files /dev/null and b/docs/library/rule-sets/10_reddit-new-layout/cover.webp differ
diff --git a/docs/library/rule-sets/11_reddit-old-layout/cover.png b/docs/library/rule-sets/11_reddit-old-layout/cover.png
deleted file mode 100644
index bb3ce57..0000000
Binary files a/docs/library/rule-sets/11_reddit-old-layout/cover.png and /dev/null differ
diff --git a/docs/library/rule-sets/11_reddit-old-layout/cover.webp b/docs/library/rule-sets/11_reddit-old-layout/cover.webp
new file mode 100644
index 0000000..db71d69
Binary files /dev/null and b/docs/library/rule-sets/11_reddit-old-layout/cover.webp differ
diff --git a/docs/library/rule-sets/11_reddit-old-layout/metadata.json b/docs/library/rule-sets/11_reddit-old-layout/metadata.json
index 342486e..3780c22 100644
--- a/docs/library/rule-sets/11_reddit-old-layout/metadata.json
+++ b/docs/library/rule-sets/11_reddit-old-layout/metadata.json
@@ -3,7 +3,7 @@
         "mshibanami"
     ],
     "imageFiles": [
-        "cover.png"
+        "cover.webp"
     ],
     "title": "TerReddit: The Old Layout by Default",
     "description": "This redirects from Terraria Wiki on Fandom to the new domain at wiki.gg.",