diff --git a/modules/sdk-coin-hbar/package.json b/modules/sdk-coin-hbar/package.json
index fd27d3c08e..55a0796db2 100644
--- a/modules/sdk-coin-hbar/package.json
+++ b/modules/sdk-coin-hbar/package.json
@@ -49,7 +49,7 @@
     "bignumber.js": "^9.0.0",
     "lodash": "^4.18.0",
     "long": "^5.2.3",
-    "protobufjs": "7.2.5",
+    "protobufjs": "7.5.5",
     "stellar-sdk": "^10.0.1",
     "tweetnacl": "^1.0.3"
   },