diff --git a/packages/strapi-plugin-upload/controllers/Upload.js b/packages/strapi-plugin-upload/controllers/Upload.js
index 87e5c75cd3..19e7144084 100644
--- a/packages/strapi-plugin-upload/controllers/Upload.js
+++ b/packages/strapi-plugin-upload/controllers/Upload.js
@@ -10,6 +10,8 @@ const _ = require('lodash');
 
 module.exports = {
   async upload(ctx) {
+    const uploadService = strapi.plugins.upload.services.upload;
+
     // Retrieve provider configuration.
     const config = await strapi
       .store({
@@ -30,8 +32,8 @@ module.exports = {
     }
 
     // Extract optional relational data.
-    const { refId, ref, source, field, path } = ctx.request.body.fields || {};
-    const { files = {} } = ctx.request.body.files || {};
+    const { refId, ref, source, field, path } = ctx.request.body || {};
+    const { files = {} } = ctx.request.files || {};
 
     if (_.isEmpty(files)) {
       return ctx.badRequest(
@@ -43,9 +45,8 @@ module.exports = {
     }
 
     // Transform stream files to buffer
-    const buffers = await strapi.plugins.upload.services.upload.bufferize(
-      ctx.request.body.files.files
-    );
+    const buffers = await uploadService.bufferize(files);
+
     const enhancedFiles = buffers.map(file => {
       if (file.size > config.sizeLimit) {
         return ctx.badRequest(
@@ -94,10 +95,7 @@ module.exports = {
       return;
     }
 
-    const uploadedFiles = await strapi.plugins.upload.services.upload.upload(
-      enhancedFiles,
-      config
-    );
+    const uploadedFiles = await uploadService.upload(enhancedFiles, config);
 
     // Send 200 `ok`
     ctx.send(
diff --git a/packages/strapi/package.json b/packages/strapi/package.json
index 294b304001..66d9d3b054 100644
--- a/packages/strapi/package.json
+++ b/packages/strapi/package.json
@@ -24,7 +24,7 @@
     "inquirer": "^6.2.1",
     "kcors": "^2.2.0",
     "koa": "^2.1.0",
-    "koa-body": "^2.5.0",
+    "koa-body": "^4.1.0",
     "koa-compose": "^4.0.0",
     "koa-compress": "^2.0.0",
     "koa-convert": "^1.2.0",
diff --git a/yarn.lock b/yarn.lock
index c1cece4417..917306f114 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2235,6 +2235,14 @@
     "@types/express-serve-static-core" "*"
     "@types/serve-static" "*"
 
+"@types/formidable@^1.0.31":
+  version "1.0.31"
+  resolved "https://registry.yarnpkg.com/@types/formidable/-/formidable-1.0.31.tgz#274f9dc2d0a1a9ce1feef48c24ca0859e7ec947b"
+  integrity sha512-dIhM5t8lRP0oWe2HF8MuPvdd1TpPTjhDMAqemcq6oIZQCBQTovhBAdTQ5L5veJB4pdQChadmHuxtB0YzqvfU3Q==
+  dependencies:
+    "@types/events" "*"
+    "@types/node" "*"
+
 "@types/glob@^7.1.1":
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/@types/glob/-/glob-7.1.1.tgz#aa59a1c6e3fbc421e07ccd31a944c30eba521575"
@@ -10490,11 +10498,12 @@ knex@^0.19.0:
     uuid "^3.3.2"
     v8flags "^3.1.3"
 
-koa-body@^2.5.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/koa-body/-/koa-body-2.6.0.tgz#8ed7a192a64a38df610a986342d1801855641a1d"
-  integrity sha512-8i9ti3TRxelsnPUct0xY8toTFj5gTzGWW45ePBkT8fnzZP75y5woisVpziIdqcnqtt1lMNBD30p+tkiSC+NfjQ==
+koa-body@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/koa-body/-/koa-body-4.1.0.tgz#99295ee2e9543884e5730ae696780930b3821c44"
+  integrity sha512-rWkMfMaCjFmIAMohtjlrg4BqDzcotK5BdZhiwJu1ONuR1ceoFUjnH3wp0hEV39HuBlc9tI3eUUFMK4Cp6ccFtA==
   dependencies:
+    "@types/formidable" "^1.0.31"
     co-body "^5.1.1"
     formidable "^1.1.1"