diff --git a/package.json b/package.json
index dc02a75625..3c2e93060c 100644
--- a/package.json
+++ b/package.json
@@ -71,8 +71,8 @@
   },
   "typings": "./index.d.ts",
   "dependencies": {
-    "follow-redirects": "^1.3.0",
-    "is-buffer": "^1.1.5"
+    "follow-redirects": "1.5.10",
+    "is-buffer": "^2.0.2"
   },
   "bundlesize": [
     {