diff --git a/package-lock.json b/package-lock.json
index f367cbe6..680e4e5b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -932,9 +932,9 @@
       "dev": true
     },
     "node_modules/@bufbuild/protobuf": {
-      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/@bufbuild/protobuf/-/protobuf-1.8.0.tgz",
-      "integrity": "sha512-qR9FwI8QKIveDnUYutvfzbC21UZJJryYrLuZGjeZ/VGz+vXelUkK+xgkOHsvPEdYEdxtgUUq4313N8QtOehJ1Q=="
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/@bufbuild/protobuf/-/protobuf-1.9.0.tgz",
+      "integrity": "sha512-W7gp8Q/v1NlCZLsv8pQ3Y0uCu/SHgXOVFK+eUluUKWXmsb6VHkpNx0apdOWWcDbB9sJoKeP8uPrjmehJz6xETQ=="
     },
     "node_modules/@bytecodealliance/jco": {
       "version": "1.1.1",
@@ -8192,7 +8192,7 @@
       "version": "1.0.0-alpha.12",
       "license": "Apache-2.0",
       "dependencies": {
-        "@bufbuild/protobuf": "1.8.0",
+        "@bufbuild/protobuf": "1.9.0",
         "@connectrpc/connect": "1.4.0",
         "typeid-js": "0.7.0"
       },
diff --git a/protocol/package.json b/protocol/package.json
index 203ab79b..5c547df4 100644
--- a/protocol/package.json
+++ b/protocol/package.json
@@ -41,7 +41,7 @@
     "test": "NODE_OPTIONS=--experimental-vm-modules jest"
   },
   "dependencies": {
-    "@bufbuild/protobuf": "1.8.0",
+    "@bufbuild/protobuf": "1.9.0",
     "@connectrpc/connect": "1.4.0",
     "typeid-js": "0.7.0"
   },