diff --git a/back/api/cron.ts b/back/api/cron.ts
index f748f840..2c9f292a 100644
--- a/back/api/cron.ts
+++ b/back/api/cron.ts
@@ -189,7 +189,7 @@ export default (app: Router) => {
     '/',
     celebrate({
       body: Joi.object({
-        labels: Joi.array().optional(),
+        labels: Joi.array().optional().allow(null),
         command: Joi.string().optional(),
         schedule: Joi.string().optional(),
         name: Joi.string().optional(),
diff --git a/back/api/env.ts b/back/api/env.ts
index aaf57b30..05767b39 100644
--- a/back/api/env.ts
+++ b/back/api/env.ts
@@ -50,7 +50,7 @@ export default (app: Router) => {
       body: Joi.object({
         value: Joi.string().required(),
         name: Joi.string().required(),
-        remarks: Joi.string().optional().allow(''),
+        remarks: Joi.string().optional().allow('').allow(null),
         id: Joi.number().required(),
       }),
     }),
diff --git a/back/services/env.ts b/back/services/env.ts
index cb8762d1..ad6c951d 100644
--- a/back/services/env.ts
+++ b/back/services/env.ts
@@ -87,7 +87,7 @@ export default class EnvService {
       const encodeText = encodeURIComponent(searchText);
       const reg = {
         [Op.or]: [
-          { [Op.like]: `%${searchText}&` },
+          { [Op.like]: `%${searchText}%` },
           { [Op.like]: `%${encodeText}%` },
         ],
       };
diff --git a/back/services/open.ts b/back/services/open.ts
index c49c0735..388587c8 100644
--- a/back/services/open.ts
+++ b/back/services/open.ts
@@ -69,7 +69,7 @@ export default class OpenService {
       const encodeText = encodeURIComponent(searchText);
       const reg = {
         [Op.or]: [
-          { [Op.like]: `%${searchText}&` },
+          { [Op.like]: `%${searchText}%` },
           { [Op.like]: `%${encodeText}%` },
         ],
       };