diff --git a/src/main.ts b/src/main.ts
index c8b7914..b56b968 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -34,7 +34,7 @@ async function bootstrap() {
       saveUninitialized: false,
       store: new RedisStore({ client: redisClient }),
       cookie: {
-        sameSite: 'lax',
+        sameSite: 'strict',
         secure: process.env.NODE_ENV === 'production',
       },
     }),
diff --git a/src/modules/objects/document/document.entity.ts b/src/modules/objects/document/document.entity.ts
index 18bbbbd..465b88a 100644
--- a/src/modules/objects/document/document.entity.ts
+++ b/src/modules/objects/document/document.entity.ts
@@ -22,17 +22,10 @@ export class Document {
   @Column({ type: 'text', nullable: false })
   body: string;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
-  @UpdateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-    onUpdate: 'CURRENT_TIMESTAMP(6)',
-  })
+  @UpdateDateColumn()
   public updated_at: Date;
 
   @ManyToOne(() => User)
diff --git a/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts b/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts
index 046c9ec..c6515cf 100644
--- a/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts
+++ b/src/modules/objects/oauth2-client/oauth2-client-authorization.entity.ts
@@ -19,10 +19,7 @@ export class OAuth2ClientAuthorization {
   @Column({ type: 'timestamp' })
   public expires_at: Date;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
   @ManyToOne(() => OAuth2Client)
diff --git a/src/modules/objects/oauth2-client/oauth2-client.entity.ts b/src/modules/objects/oauth2-client/oauth2-client.entity.ts
index e48c128..6be87d0 100644
--- a/src/modules/objects/oauth2-client/oauth2-client.entity.ts
+++ b/src/modules/objects/oauth2-client/oauth2-client.entity.ts
@@ -41,17 +41,10 @@ export class OAuth2Client {
   @Column({ default: false })
   verified: boolean;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
-  @UpdateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-    onUpdate: 'CURRENT_TIMESTAMP(6)',
-  })
+  @UpdateDateColumn()
   public updated_at: Date;
 
   @ManyToOne(() => Upload, { nullable: true, onDelete: 'SET NULL' })
diff --git a/src/modules/objects/oauth2-token/oauth2-token.entity.ts b/src/modules/objects/oauth2-token/oauth2-token.entity.ts
index ae80bcf..6fe355b 100644
--- a/src/modules/objects/oauth2-token/oauth2-token.entity.ts
+++ b/src/modules/objects/oauth2-token/oauth2-token.entity.ts
@@ -38,16 +38,9 @@ export class OAuth2Token {
   @Column({ type: 'timestamp' })
   public expires_at: Date;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
-  @UpdateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-    onUpdate: 'CURRENT_TIMESTAMP(6)',
-  })
+  @UpdateDateColumn()
   public updated_at: Date;
 }
diff --git a/src/modules/objects/upload/upload.entity.ts b/src/modules/objects/upload/upload.entity.ts
index ec6e26c..d589f8a 100644
--- a/src/modules/objects/upload/upload.entity.ts
+++ b/src/modules/objects/upload/upload.entity.ts
@@ -29,16 +29,9 @@ export class Upload {
   })
   uploader: User;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
-  @UpdateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-    onUpdate: 'CURRENT_TIMESTAMP(6)',
-  })
+  @UpdateDateColumn()
   public updated_at: Date;
 }
diff --git a/src/modules/objects/user-token/user-token.entity.ts b/src/modules/objects/user-token/user-token.entity.ts
index 177ff2b..ce7e6fc 100644
--- a/src/modules/objects/user-token/user-token.entity.ts
+++ b/src/modules/objects/user-token/user-token.entity.ts
@@ -32,10 +32,7 @@ export class UserToken {
   @Column({ type: 'timestamp', nullable: true })
   public expires_at: Date;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
   @ManyToOne(() => User)
diff --git a/src/modules/objects/user/user.entity.ts b/src/modules/objects/user/user.entity.ts
index 4343b02..fd04751 100644
--- a/src/modules/objects/user/user.entity.ts
+++ b/src/modules/objects/user/user.entity.ts
@@ -37,17 +37,10 @@ export class User {
   @Column({ type: 'timestamp' })
   public activity_at: Date;
 
-  @CreateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-  })
+  @CreateDateColumn()
   public created_at: Date;
 
-  @UpdateDateColumn({
-    type: 'timestamp',
-    default: () => 'CURRENT_TIMESTAMP(6)',
-    onUpdate: 'CURRENT_TIMESTAMP(6)',
-  })
+  @UpdateDateColumn()
   public updated_at: Date;
 
   @ManyToOne(() => Upload, {