diff --git a/index.html b/index.html
index 468a182..734c3c4 100644
--- a/index.html
+++ b/index.html
@@ -3,6 +3,21 @@
   <head>
     <meta charset="UTF-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      content="
+        default-src 'self';
+        script-src 'self' 'unsafe-inline' 'unsafe-eval';
+        style-src 'self' 'unsafe-inline';
+        img-src 'self' data: https:;
+        font-src 'self' data:;
+        connect-src 'self' https:;
+        base-uri 'self';
+        form-action 'self';
+        object-src 'none';
+        frame-ancestors 'none';
+      "
+    />
     <title>DDang | 반려견 산책 서비스</title>
     <link rel="icon" href="/favicon.ico" />
     <link rel="apple-touch-icon" href="/apple-touch-icon-180x180.png" sizes="180x180" />
