diff --git a/src/response.lisp b/src/response.lisp
index e00a1fe..37b1cb9 100644
--- a/src/response.lisp
+++ b/src/response.lisp
@@ -12,7 +12,7 @@
      (head
        (meta :charset "UTF-8")
        (meta :name "viewport" :content "width=device-width, initial-scale=1")
-       (link :rel "stylesheet" :href "https://cdn.jsdelivr.net/npm/uikit@3.21.5/dist/css/uikit.min.css")
+       (link :rel "stylesheet" :href "https://cdn.jsdelivr.net/npm/bulma@1.0.0/css/bulma.min.css")
        (script :src "https://cdn.jsdelivr.net/npm/uikit@3.21.5/dist/js/uikit.min.js")
        (script :src "https://cdn.jsdelivr.net/npm/htmx.org@1.9.12/dist/htmx.min.js")
        (script :src "https://cdn.jsdelivr.net/npm/htmx.org@1.9.12/dist/ext/head-support.js")
@@ -22,7 +22,7 @@
          :name "description"
          :content (or description "pakuの個人サイト"))
        (body :hx-ext "head-support"
-         (main :class "uk-container"
+         (main :class "container"
            children))))))
 
 (defun response (page &key status metadata)