diff --git a/HISTORY.md b/HISTORY.md
index 72656419..8203cc73 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,9 @@
+unreleased
+==========
+
+  * deps: qs@6.4.0
+    - Fix regression parsing keys starting with `[`
+
 1.17.0 / 2017-03-01
 ===================
 
diff --git a/package.json b/package.json
index f69e6e6b..63effa26 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "http-errors": "~1.6.1",
     "iconv-lite": "0.4.15",
     "on-finished": "~2.3.0",
-    "qs": "6.3.1",
+    "qs": "6.4.0",
     "raw-body": "~2.2.0",
     "type-is": "~1.6.14"
   },