diff --git a/specs/openApiMain.yaml b/specs/openApiMain.yaml
index a052e63..37f8f9f 100644
--- a/specs/openApiMain.yaml
+++ b/specs/openApiMain.yaml
@@ -89,6 +89,12 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/EmployeeServiceErrorResponse'
+        '410':
+          description: 更新対象の社員の番号が該当なし
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/EmployeeServiceErrorResponse'
 
   /v1/employee/{employeeNumber}:
     delete:
@@ -230,4 +236,5 @@ components:
       type: object
       properties:
         message:
-          type: string
\ No newline at end of file
+          type: string
+          default: "不適格なリクエストを検知しました"
diff --git a/src/test/kotlin/com/example/kotlinonspringboot/presentation/controller/EmployeeSearchControllerTest.kt b/src/test/kotlin/com/example/kotlinonspringboot/presentation/controller/EmployeeSearchControllerTest.kt
index 1b45a80..29a38e6 100644
--- a/src/test/kotlin/com/example/kotlinonspringboot/presentation/controller/EmployeeSearchControllerTest.kt
+++ b/src/test/kotlin/com/example/kotlinonspringboot/presentation/controller/EmployeeSearchControllerTest.kt
@@ -28,7 +28,7 @@ class EmployeeSearchControllerTest {
 
     @Nested
     @DisplayName("PK社員検索")
-    inner class List {
+    inner class Get {
         @ParameterizedTest(name = "パスパラメータの番号が{0}の時、社員エラーレスポンスが返却されること")
         @CsvSource(
             delimiter = '|',