diff --git a/examples/shared/files.js b/examples/shared/files.js
index 68ea827..663b408 100644
--- a/examples/shared/files.js
+++ b/examples/shared/files.js
@@ -1,5 +1,3 @@
-const axios = require('axios');
-const FormData = require('form-data');
 const fs = require('fs');
 const path = require('path');
 const splitFile = require('split-file');
@@ -25,14 +23,7 @@ const JSON_HEADERS = {
 
 async function createFileUpload(options = { mode: 'single_part' }) {
   try {
-    const response = await axios({
-      method: 'POST',
-      url: NOTION_FILE_UPLOAD_URL,
-      headers: JSON_HEADERS,
-      data: options,
-    });
-
-    return response.data;
+    return await notion.fileUploads.create(options);
   } catch (error) {
     console.error('Error creating file upload:', error);
     throw error;
@@ -125,45 +116,35 @@ async function getFileSize(filePath) {
   return stats.size;
 }
 
-async function uploadPart(fileId, partBuffer, partNumber = null) {
-  const formData = new FormData();
-  formData.append('file', partBuffer);
+async function uploadPart(file, blob, partNumber = null) {
+  const params = {
+    file_upload_id: file.id,
+    file: {
+      data: blob,
+      filename: file.filename,
+    },
+  };
 
   if (partNumber) {
     console.log('uploading part', partNumber);
-    formData.append('part_number', partNumber.toString());
+    // Minor issue with the API, part_number must be a string
+    params.part_number = partNumber.toString();
   }
 
-  const response = await axios({
-    method: 'POST',
-    url: `${NOTION_FILE_UPLOAD_URL}/${fileId}/send`,
-    data: formData,
-    headers: {
-      ...NOTION_HEADERS,
-      'Content-Type': 'multipart/form-data',
-    },
-    ...(!partNumber && { maxContentLength: SINGLE_PART_LIMIT }),
-  });
-
-  return response.data;
+  return await notion.fileUploads.send(params);
 }
 
-async function completeMultiPartUpload(fileId) {
+async function completeMultiPartUpload(file) {
   console.log('completing upload');
 
-  const response = await axios({
-    method: 'POST',
-    url: `${NOTION_FILE_UPLOAD_URL}/${fileId}/complete`,
-    headers: JSON_HEADERS,
+  return await notion.fileUploads.complete({
+    file_upload_id: file.id,
   });
-
-  return response.data;
 }
 
 async function uploadFile(filePath, fileName = path.basename(filePath)) {
   const fileSize = await getFileSize(filePath);
   const needsMultiPart = fileSize > SINGLE_PART_LIMIT;
-
   const contentType = getContentType(fileName);
 
   if (!contentType) {
@@ -191,17 +172,19 @@ async function uploadFile(filePath, fileName = path.basename(filePath)) {
       });
 
       for (let i = 1; i <= parts.length; i++) {
-        const fileStream = fs.createReadStream(parts[i - 1]);
-        upload = await uploadPart(file.id, fileStream, i);
+        const buffer = await fs.promises.readFile(parts[i - 1]);
+        const blob = new Blob([buffer], { type: contentType });
+        upload = await uploadPart(file, blob, i);
       }
 
       // Complete the upload
-      upload = await completeMultiPartUpload(file.id);
+      upload = await completeMultiPartUpload(file);
     } else {
       // Single-part upload
-      const fileStream = fs.createReadStream(filePath);
+      const buffer = await fs.promises.readFile(filePath);
+      const blob = new Blob([buffer], { type: contentType });
       file = await createFileUpload();
-      upload = await uploadPart(file.id, fileStream);
+      upload = await uploadPart(file, blob);
     }
 
     return { file, upload };
diff --git a/package-lock.json b/package-lock.json
index eeb9002..05d9c70 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,14 +9,13 @@
       "version": "1.0.0",
       "license": "MIT",
       "dependencies": {
-        "@notionhq/client": "^3.0.1",
+        "@notionhq/client": "^3.1.1",
         "@notionhq/notion-mcp-server": "^1.8.0",
         "async-sema": "^3.1.1",
         "axios": "^1.4.0",
         "date-fns": "^2.28.0",
         "date-fns-tz": "^1.3.5",
         "dotenv": "^16.3.1",
-        "form-data": "^4.0.2",
         "lodash": "^4.17.21",
         "split-file": "^2.3.0",
         "yargs": "^17.5.1"
@@ -330,9 +329,10 @@
       }
     },
     "node_modules/@notionhq/client": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/@notionhq/client/-/client-3.0.1.tgz",
-      "integrity": "sha512-vHtFKrRKQg2PZSky1A9fTe+L9/WxNYRJWHmD6ZiBNgeN5jnFmv27ootRl9ROzEm/N+mOxfTo37EnuCHsaPgETg==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/@notionhq/client/-/client-3.1.1.tgz",
+      "integrity": "sha512-sAFNjrW5IVX1jgVRxn83mtLNphWsp4qj1koW5YKx9w0qH1pJLfJyAjedwvIFjWG2VNzPuXxVrXpQaRnxSUt5aQ==",
+      "license": "MIT",
       "engines": {
         "node": ">=18"
       }
@@ -2137,9 +2137,9 @@
       }
     },
     "@notionhq/client": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/@notionhq/client/-/client-3.0.1.tgz",
-      "integrity": "sha512-vHtFKrRKQg2PZSky1A9fTe+L9/WxNYRJWHmD6ZiBNgeN5jnFmv27ootRl9ROzEm/N+mOxfTo37EnuCHsaPgETg=="
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/@notionhq/client/-/client-3.1.1.tgz",
+      "integrity": "sha512-sAFNjrW5IVX1jgVRxn83mtLNphWsp4qj1koW5YKx9w0qH1pJLfJyAjedwvIFjWG2VNzPuXxVrXpQaRnxSUt5aQ=="
     },
     "@notionhq/notion-mcp-server": {
       "version": "1.8.0",
diff --git a/package.json b/package.json
index 111effd..aa400bf 100644
--- a/package.json
+++ b/package.json
@@ -6,14 +6,13 @@
   "author": "Benjamin Borowski <ben@weareokidoki.com>",
   "license": "MIT",
   "dependencies": {
-    "@notionhq/client": "^3.0.1",
+    "@notionhq/client": "^3.1.1",
     "@notionhq/notion-mcp-server": "^1.8.0",
     "async-sema": "^3.1.1",
     "axios": "^1.4.0",
     "date-fns": "^2.28.0",
     "date-fns-tz": "^1.3.5",
     "dotenv": "^16.3.1",
-    "form-data": "^4.0.2",
     "lodash": "^4.17.21",
     "split-file": "^2.3.0",
     "yargs": "^17.5.1"