diff --git a/shimatta_kenkyusho/templates/parts/stocks-detail.html b/shimatta_kenkyusho/templates/parts/stocks-detail.html
index 99ee247..e80609f 100644
--- a/shimatta_kenkyusho/templates/parts/stocks-detail.html
+++ b/shimatta_kenkyusho/templates/parts/stocks-detail.html
@@ -30,7 +30,7 @@
                 {% endif %}
                 <button type="button" class="btn btn-danger" data-bs-toggle="modal" data-bs-target="#delete-storage-modal">Delete</button>
                 <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#add-sub-modal"><i class="bi bi-plus-circle"></i></button>
-                <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#change-modal"><i class="bi bi-pen-fill"></i></button>
+                <button type="button" class="btn btn-primary" data-bs-toggle="modal" data-bs-target="#change-modal"><i class="bi bi-pencil-square"></i></button>
                 </h1>
                 <div class="list-group">
                 {% for storage in storages %}