diff --git a/HISTORY.md b/HISTORY.md
index 18fc15cf..c380a788 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,6 +1,8 @@
 unreleased
 ==========
 
+  * deps: bytes@3.1.0
+    - Add petabyte (`pb`) support
   * deps: qs@6.6.0
 
 1.18.3 / 2018-05-14
diff --git a/package.json b/package.json
index 3306b838..51b5cea2 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
   "license": "MIT",
   "repository": "expressjs/body-parser",
   "dependencies": {
-    "bytes": "3.0.0",
+    "bytes": "3.1.0",
     "content-type": "~1.0.4",
     "debug": "2.6.9",
     "depd": "~1.1.2",