diff --git a/src/main/resources/templates/fixed_cost_create.html b/src/main/resources/templates/fixed_cost_create.html
index 0c478d1..8217b49 100644
--- a/src/main/resources/templates/fixed_cost_create.html
+++ b/src/main/resources/templates/fixed_cost_create.html
@@ -37,7 +37,7 @@
 					<div class="mb-3">
 						<label class="form-label" for="transactionType">収入・支出</label>
 
-						<select class="form-select" id="transactionType">
+						<select class="form-select" id="transactionType" required>
 
 							<option value="">選択してください</option>
 							<option value="0">支出</option>
@@ -51,7 +51,7 @@
 					<div class="mb-3">
 						<label class="form-label" for="categoryId">カテゴリ</label>
 
-						<select class="form-select" id="categoryId" th:field="*{categoryId}">
+						<select class="form-select" id="categoryId" th:field="*{categoryId}" required>
 							<option value="">選択してください</option>
 
 							<option class="expenseListClass" th:each="category : ${expenseList}"