diff --git a/package.json b/package.json
index 5df37fc..d43609b 100644
--- a/package.json
+++ b/package.json
@@ -82,6 +82,6 @@
     "@cosmjs/proto-signing": "0.39.0",
     "@cosmjs/stargate": "0.39.0",
     "@cosmjs/tendermint-rpc": "^0.39.0",
-    "protobufjs": "^7.0.0"
+    "protobufjs": "^8.0.0"
   }
 }