diff --git a/index.js b/index.js
index 64c7227..4868cb3 100644
--- a/index.js
+++ b/index.js
@@ -65,10 +65,10 @@ async function fetchHandler(e) {
     }
     // cfworker 会把路径中的 `//` 合并成 `/`
     path = urlObj.href.substr(urlObj.origin.length + PREFIX.length).replace(/^https?:\/+/, 'https://')
-    const exp1 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:releases|archive)\/.*$/
-    const exp2 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:blob)\/.*$/
-    const exp3 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:info|git-upload-pack).*$/
-    const exp4 = /^(?:https?:\/\/)?raw\.githubusercontent\.com\/.+?\/.+?\/.+?\/.+$/
+    const exp1 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:releases|archive)\/.*$/i
+    const exp2 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:blob)\/.*$/i
+    const exp3 = /^(?:https?:\/\/)?github\.com\/.+?\/.+?\/(?:info|git-upload-pack).*$/i
+    const exp4 = /^(?:https?:\/\/)?raw\.githubusercontent\.com\/.+?\/.+?\/.+?\/.+$/i
     if (path.search(exp1) === 0 || !Config.jsdelivr && path.search(exp2) === 0 || !Config.cnpmjs && (path.search(exp3) === 0 || path.search(exp4))) {
         return httpHandler(req, path)
     } else if (path.search(exp2) === 0) {