diff --git a/package.json b/package.json
index 7aca181b4..d31d1860e 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "extend": "~3.0.2",
     "forever-agent": "~0.6.1",
     "form-data": "~2.3.2",
-    "http-signature": "~1.3.6",
+    "http-signature": "~1.4.0",
     "is-typedarray": "~1.0.0",
     "isstream": "~0.1.2",
     "json-stringify-safe": "~5.0.1",