diff --git a/src/interactions/types/webhook.ts b/src/interactions/types/webhook.ts
index 9743bb8b9..0a65112a6 100644
--- a/src/interactions/types/webhook.ts
+++ b/src/interactions/types/webhook.ts
@@ -12,7 +12,7 @@ export interface ExecuteWebhookOptions {
   /** true if this is a TTS message */
   tts?: boolean;
   /** file contents	the contents of the file being sent	one of content, file, embeds */
-  file?: { blob: unknown; name: string };
+  file?: { blob: Blob; name: string };
   /** array of up to 10 embed objects	embedded rich content. */
   embeds?: Embed[];
   /** allowed mentions for the message */
diff --git a/src/rest/request_manager.ts b/src/rest/request_manager.ts
index af77cb559..02e12b6a9 100644
--- a/src/rest/request_manager.ts
+++ b/src/rest/request_manager.ts
@@ -166,7 +166,7 @@ function createRequestBody(body: any, method: RequestMethods) {
 
     body.file.map((file: FileContent, index: number) =>
       // The key of the form data item must be unique; otherwise, Discordeno only considers the first item in the form data with the same names
-      form.append(`file${index + 1}`, file.blob as Blob, file.name)
+      form.append(`file${index + 1}`, file.blob, file.name)
     );
 
     form.append("payload_json", JSON.stringify({ ...body, file: undefined }));
diff --git a/src/types/api/message.ts b/src/types/api/message.ts
index d05de3392..a85eaec80 100644
--- a/src/types/api/message.ts
+++ b/src/types/api/message.ts
@@ -250,7 +250,7 @@ export interface DiscordCreateMessageParams {
   /** `true` if this is a TTS message */
   tts: boolean;
   /** the contents of the file being sent */
-  file?: { blob: unknown; name: string };
+  file?: { blob: Blob; name: string };
   /** embedded rich content */
   embed?: DiscordEmbed;
   /** JSON encoded body of any additional request fields. */
diff --git a/src/types/channel.ts b/src/types/channel.ts
index 5c0716f11..5113da665 100644
--- a/src/types/channel.ts
+++ b/src/types/channel.ts
@@ -123,7 +123,7 @@ export interface MessageContent {
 }
 
 export interface FileContent {
-  blob: unknown;
+  blob: Blob;
   name: string;
 }
 
diff --git a/src/types/webhook.ts b/src/types/webhook.ts
index bc52309f9..77932cbea 100644
--- a/src/types/webhook.ts
+++ b/src/types/webhook.ts
@@ -57,7 +57,7 @@ export interface ExecuteWebhookOptions {
   /** true if this is a TTS message */
   tts?: boolean;
   /** file contents	the contents of the file being sent	one of content, file, embeds */
-  file?: { blob: unknown; name: string };
+  file?: { blob: Blob; name: string };
   /** array of up to 10 embed objects	embedded rich content. */
   embeds?: Embed[];
   /** allowed mentions for the message */