diff --git a/src/constants/index.ts b/src/constants/index.ts
index 3e7b77d5..f52722ad 100644
--- a/src/constants/index.ts
+++ b/src/constants/index.ts
@@ -1,2 +1 @@
 export * from './httpStatusCode';
-export * from './secret';
diff --git a/src/constants/secret.ts b/src/constants/secret.ts
deleted file mode 100644
index 611a8131..00000000
--- a/src/constants/secret.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-// このファイル内の関数はサーバーサイドでしか動作しない
-export const cognitoClientId = (): string =>
-  process.env.COGNITO_CLIENT_ID != null ? process.env.COGNITO_CLIENT_ID : '';
-
-export const cognitoClientSecret = (): string =>
-  process.env.COGNITO_CLIENT_SECRET != null
-    ? process.env.COGNITO_CLIENT_SECRET
-    : '';