diff --git a/Prototype/server/src/controllers/fileController.ts b/Prototype/server/src/controllers/fileController.ts
index 57f3379..3e5081c 100644
--- a/Prototype/server/src/controllers/fileController.ts
+++ b/Prototype/server/src/controllers/fileController.ts
@@ -3,6 +3,7 @@ import {
   Delete,
   FormField,
   Get,
+  Patch,
   Path,
   Post,
   Request,
@@ -168,6 +169,98 @@ export class FileController extends Controller {
     return records;
   }
 
+  @Patch("/{cabinetName}/drawer/{drawerName}/folder/{folderName}/file/{fileName}")
+  @Tags("File")
+  @Security("bearerAuth")
+  @SuccessResponse(HttpStatusCode.OK)
+  public async updateFile(
+    @Request() request: { user: { preferred_username: string } },
+    @Path() cabinetName: string,
+    @Path() drawerName: string,
+    @Path() folderName: string,
+    @Path() fileName: string,
+    @UploadedFile() file?: Express.Multer.File,
+    @FormField() title?: string,
+    @FormField() description?: string,
+    @FormField() keyword?: string,
+    @FormField() category?: string,
+  ) {
+    const search = await esClient.search<EhrFile & { attachment: Record<string, string> }>({
+      index: "ehr-api-client",
+      query: {
+        match: {
+          pathname: `${cabinetName}/${drawerName}/${folderName}/${fileName}`,
+        },
+      },
+    });
+
+    if (search && search.hits.hits.length === 0) {
+      throw new HttpError(HttpStatusCode.NOT_FOUND, "Not found");
+    }
+
+    const data = search.hits.hits[0];
+
+    if (!file) {
+      const esResult = await esClient
+        .update({
+          index: "ehr-api-client",
+          id: data._id,
+          doc: {
+            title,
+            description,
+            keyword: keyword?.split(","),
+            category: category?.split(","),
+            updatedAt: new Date().toISOString(),
+            updatedBy: request.user.preferred_username,
+          },
+        })
+        .catch((e) => console.error(e));
+
+      if (!esResult) throw new Error("An error occured, cannot perform this action.");
+    } else {
+      const filename = Buffer.from(file.originalname, "latin1").toString("utf-8");
+      const pathname = `${cabinetName}/${drawerName}/${folderName}/${filename}`;
+
+      await minioClient.removeObject(
+        "ehr",
+        `${cabinetName}/${drawerName}/${folderName}/${fileName}`,
+      );
+
+      const info = await minioClient
+        .putObject("ehr", pathname, file.buffer, file.size, {
+          "Content-Type": file.mimetype,
+          createdAt: new Date().toISOString(),
+          createdBy: request.user.preferred_username,
+        })
+        .catch((e) => console.error(e));
+
+      if (!info) throw new Error("Object storage error occured.");
+
+      await esClient.delete({ index: data._index, id: data._id });
+      await esClient.index({
+        pipeline: "attachment",
+        index: "ehr-api-client",
+        document: {
+          data: Buffer.from(file.buffer).toString("base64"),
+          pathname,
+          fileName: filename,
+          fileSize: file.size,
+          fileType: file.mimetype,
+          title: title,
+          description: description,
+          category: category?.split(","),
+          keyword: keyword?.split(","),
+          createdAt: data._source?.createdAt,
+          createdBy: data._source?.createdBy,
+          updatedAt: new Date().toISOString(),
+          updatedBy: request.user.preferred_username,
+        },
+      });
+    }
+
+    return this.setStatus(HttpStatusCode.NO_CONTENT);
+  }
+
   @Delete("/{cabinetName}/drawer/{drawerName}/folder/{folderName}/file/{fileName}")
   @Tags("File")
   @Security("bearerAuth")