diff --git a/package.json b/package.json
index 532e3adb..382f1c1d 100644
--- a/package.json
+++ b/package.json
@@ -44,7 +44,7 @@
     "cheerio": "0.22.0",
     "commander": "2.19.0",
     "express": "4.16.4",
-    "file-type": "10.1.0",
+    "file-type": "10.4.0",
     "filenamify": "2.1.0",
     "fs-extra": "7.0.1",
     "irc-framework": "4.0.0",
diff --git a/src/plugins/uploader.js b/src/plugins/uploader.js
index 0dff113f..19528d8b 100644
--- a/src/plugins/uploader.js
+++ b/src/plugins/uploader.js
@@ -124,7 +124,7 @@ class Uploader {
 		let type;
 
 		try {
-			buffer = readChunk.sync(filePath, 0, 4100);
+			buffer = readChunk.sync(filePath, 0, fileType.minimumBytes);
 		} catch (e) {
 			if (e.code === "ENOENT") { // doesn't exist
 				return;
diff --git a/yarn.lock b/yarn.lock
index ba4a40d3..4552f3ff 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2864,9 +2864,9 @@ file-entry-cache@^2.0.0:
     flat-cache "^1.2.1"
     object-assign "^4.0.1"
 
-file-type@10.1.0:
-  version "10.1.0"
-  resolved "https://registry.yarnpkg.com/file-type/-/file-type-10.1.0.tgz#f692a28722e1ac8e206e68fcc2fb032a759d16d0"
+file-type@10.4.0:
+  version "10.4.0"
+  resolved "https://registry.yarnpkg.com/file-type/-/file-type-10.4.0.tgz#e730e93ffdf30992c0b7d38fc2f15c4371353d44"
 
 filename-reserved-regex@^2.0.0:
   version "2.0.0"