diff --git a/package.json b/package.json
index 94122a0..5e63fec 100644
--- a/package.json
+++ b/package.json
@@ -55,7 +55,7 @@
     "bitcore-lib": "^0.15.0",
     "bs58": "^4.0.1",
     "jsrsasign": "^8.0.4",
-    "protobufjs": "=5.0.1"
+    "protobufjs": "=7.5.6"
   },
   "devDependencies": {
     "bitcore-build": "https://github.com/bitpay/bitcore-build.git#d4e8b2b2f1e2c065c3a807dcb6a6250f61d67ab3",