diff --git a/site/package.json b/site/package.json
index 04ed82704e..88cf26c227 100644
--- a/site/package.json
+++ b/site/package.json
@@ -27,7 +27,7 @@
     "polka": "^1.0.0-next.2",
     "prismjs": "^1.15.0",
     "session-file-store": "^1.2.0",
-    "sirv": "^0.3.1"
+    "sirv": "^0.4.0"
   },
   "devDependencies": {
     "@babel/core": "^7.3.3",