diff --git a/packages/trilium-core/src/routes/api/attachments.ts b/packages/trilium-core/src/routes/api/attachments.ts
index c74dcce1f0..d361b5698a 100644
--- a/packages/trilium-core/src/routes/api/attachments.ts
+++ b/packages/trilium-core/src/routes/api/attachments.ts
@@ -1,7 +1,9 @@
 import { ConvertAttachmentToNoteResponse } from "@triliumnext/commons";
 import { ValidationError } from "../../errors";
 import type { Request } from "express";
+import type { File } from "../../services/import/common.js";
 
+type FileRequest<P> = Omit<Request<P>, "file"> & { file?: File };
 
 import becca from "../../becca/becca.js";
 import blobService from "../../services/blob.js";
@@ -44,9 +46,9 @@ function saveAttachment(req: Request<{ noteId: string }>) {
     note.saveAttachment({ attachmentId, role, mime, title, content }, matchBy);
 }
 
-function uploadAttachment(req: Request<{ noteId: string }>) {
+function uploadAttachment(req: FileRequest<{ noteId: string }>) {
     const { noteId } = req.params;
-    const { file } = req as any; // TODO: Add support for file upload in type definitions and remove 'as any' cast
+    const { file } = req;
 
     if (!file) {
         return {
diff --git a/packages/trilium-core/src/routes/api/image.ts b/packages/trilium-core/src/routes/api/image.ts
index 71c96c7ed8..48db824d7f 100644
--- a/packages/trilium-core/src/routes/api/image.ts
+++ b/packages/trilium-core/src/routes/api/image.ts
@@ -1,4 +1,7 @@
 import type { Request, Response } from "express";
+import type { File } from "../../services/import/common.js";
+
+type FileRequest<P> = Omit<Request<P>, "file"> & { file?: File };
 
 import becca from "../../becca/becca.js";
 import type BNote from "../../becca/entities/bnote.js";
@@ -103,9 +106,9 @@ function returnAttachedImage(req: Request<{ attachmentId: string }>, res: Respon
     }
 }
 
-function updateImage(req: Request<{ noteId: string }>) {
+function updateImage(req: FileRequest<{ noteId: string }>) {
     const { noteId } = req.params;
-    const { file } = req as any;  // TODO: Add support for file upload in type definitions and remove 'as any' cast
+    const { file } = req;
 
     const _note = becca.getNoteOrThrow(noteId);