diff --git a/package.json b/package.json
index 4f936cb..1a3663d 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "bl": "^1.2.0",
+    "bl": "^4.0.3",
     "pumpify": "^1.3.0",
     "split": "^1.0.0",
     "through2": "~2.0.3"