diff --git a/src/structures/responses.dto.ts b/src/structures/responses.dto.ts
index add6d354..eea48d48 100644
--- a/src/structures/responses.dto.ts
+++ b/src/structures/responses.dto.ts
@@ -21,13 +21,13 @@ export class WAMedia {
     description: 'mimetype for the media in the message if any',
     example: 'audio/jpeg',
   })
-  mimetype: string | null;
+  mimetype?: string;
 
   @ApiProperty({
     description: 'The original filename in mediaUrl in the message if any',
     example: 'example.pdf',
   })
-  filename: string | null;
+  filename?: string;
 }
 
 export class WAMessage {
@@ -76,7 +76,7 @@ export class WAMessage {
   })
   hasMedia: boolean;
 
-  media: WAMedia | null = null;
+  media?: WAMedia = null;
 
   @ApiProperty({
     description:
diff --git a/src/structures/webhooks.dto.ts b/src/structures/webhooks.dto.ts
index b69285a5..244f31a1 100644
--- a/src/structures/webhooks.dto.ts
+++ b/src/structures/webhooks.dto.ts
@@ -84,8 +84,8 @@ export class PollVotePayload {
 }
 
 export class WAMessageRevokedBody {
-  after: WAMessage | null;
-  before: WAMessage | null;
+  after?: WAMessage;
+  before?: WAMessage;
 }
 export class WASessionStatusBody {
   @ApiProperty({
@@ -107,7 +107,7 @@ export class WAHAWebhook {
   })
   engine: WAHAEngine;
 
-  me: MeInfo | null;
+  me?: MeInfo;
 
   environment: WAHAEnvironment;