diff --git a/app/logical/source/url/anifty.rb b/app/logical/source/url/anifty.rb
index 4d96c2da9..3d942d97c 100644
--- a/app/logical/source/url/anifty.rb
+++ b/app/logical/source/url/anifty.rb
@@ -16,14 +16,14 @@ class Source::URL::Anifty < Source::URL
 
     # https://anifty.imgix.net/creation/0x961d09077b4a9f7a27f6b7ee78cb4c26f0e72c18/20d5ce5b5163a71258e1d0ee152a0347bf40c7da.png?w=660&h=660&fit=crop&crop=focalpoint&fp-x=0.76&fp-y=0.5&fp-z=1&auto=compress
     # https://anifty.imgix.net/creation/0x961d09077b4a9f7a27f6b7ee78cb4c26f0e72c18/48b1409838cf7271413480b8533372844b9f2437.png?w=3840&q=undefined&auto=compress
-    in "anifty.imgix.net", work_type, /0x\w+/ => artist_hash, file
+    in "anifty.imgix.net", work_type, /^0x\w+$/ => artist_hash, file
       @artist_hash = artist_hash
       @file = file
       @work_type = work_type
 
     # https://storage.googleapis.com/anifty-media/creation/0x961d09077b4a9f7a27f6b7ee78cb4c26f0e72c18/20d5ce5b5163a71258e1d0ee152a0347bf40c7da.png
     # https://storage.googleapis.com/anifty-media/profile/0x961d09077b4a9f7a27f6b7ee78cb4c26f0e72c18/a6d2c366a3e876ddbf04fc269b63124be18af424.png
-    in "storage.googleapis.com", "anifty-media", work_type, /0x\w+/ => artist_hash, file
+    in "storage.googleapis.com", "anifty-media", work_type, /^0x\w+$/ => artist_hash, file
       @artist_hash = artist_hash
       @file = file
       @work_type = work_type
@@ -32,12 +32,12 @@ class Source::URL::Anifty < Source::URL
     # https://anifty.jp/ja/creations/373
     # https://anifty.jp/zh/creations/373
     # https://anifty.jp/zh-Hant/creations/373
-    in ("anifty.jp" | "www.anifty.jp"), *, "creations", /\d+/ => work_id
+    in ("anifty.jp" | "www.anifty.jp"), *, "creations", /^\d+$/ => work_id
       @work_id = work_id
 
     # https://anifty.jp/@hightree
     # https://anifty.jp/ja/@hightree
-    in ("anifty.jp" | "www.anifty.jp"), *, /@(\w+)/
+    in ("anifty.jp" | "www.anifty.jp"), *, /^@(\w+)$/
       @username = $1
 
     else