diff --git a/package.json b/package.json
index 0c1d4c5..50b498d 100644
--- a/package.json
+++ b/package.json
@@ -97,7 +97,7 @@
     "@kazupon/eslint-config": "^0.38.0",
     "@kazupon/prettier-config": "^0.1.1",
     "@types/node": "^24.10.0",
-    "@types/supertest": "^2.0.16",
+    "@types/supertest": "^6.0.0",
     "@vitest/coverage-v8": "catalog:vitest",
     "@vitest/eslint-plugin": "^1.4.1",
     "bumpp": "^9.11.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6fb8a33..40fef12 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -40,8 +40,8 @@ importers:
         specifier: ^24.10.0
         version: 24.10.0
       '@types/supertest':
-        specifier: ^2.0.16
-        version: 2.0.16
+        specifier: ^6.0.0
+        version: 6.0.3
       '@vitest/coverage-v8':
         specifier: catalog:vitest
         version: 4.0.8(vitest@4.0.8(@types/debug@4.1.12)(@types/node@24.10.0)(jiti@2.6.1)(tsx@4.20.6)(yaml@2.8.1))
@@ -1299,8 +1299,8 @@ packages:
   '@types/superagent@8.1.9':
     resolution: {integrity: sha512-pTVjI73witn+9ILmoJdajHGW2jkSaOzhiFYF1Rd3EQ94kymLqB9PjD9ISg7WaALC7+dCHT0FGe9T2LktLq/3GQ==}
 
-  '@types/supertest@2.0.16':
-    resolution: {integrity: sha512-6c2ogktZ06tr2ENoZivgm7YnprnhYE4ZoXGMY+oA7IuAf17M8FWvujXZGmxLv8y0PTyts4x5A+erSwVUFA8XSg==}
+  '@types/supertest@6.0.3':
+    resolution: {integrity: sha512-8WzXq62EXFhJ7QsH3Ocb/iKQ/Ty9ZVWnVzoTKc9tyyFRRF3a74Tk2+TLFgaFFw364Ere+npzHKEJ6ga2LzIL7w==}
 
   '@types/unist@3.0.3':
     resolution: {integrity: sha512-ko/gIFJRv177XgZsZcBwnqJN5x/Gien8qNOn0D5bQU/zAzVf9Zt3BlcUiLqhV9y4ARk0GbT3tnUiPNgnTXzc/Q==}
@@ -5152,8 +5152,9 @@ snapshots:
       '@types/node': 24.10.0
       form-data: 4.0.4
 
-  '@types/supertest@2.0.16':
+  '@types/supertest@6.0.3':
     dependencies:
+      '@types/methods': 1.1.4
       '@types/superagent': 8.1.9
 
   '@types/unist@3.0.3': {}