diff --git a/helix-syntax/languages/tree-sitter-protobuf b/helix-syntax/languages/tree-sitter-protobuf
index 3eb3da672..19c211a01 160000
--- a/helix-syntax/languages/tree-sitter-protobuf
+++ b/helix-syntax/languages/tree-sitter-protobuf
@@ -1 +1 @@
-Subproject commit 3eb3da67280d8fc32d644c484d05a6ae7f7e4b8f
+Subproject commit 19c211a01434d9f03efff99f85e19f967591b175
diff --git a/runtime/queries/protobuf/highlights.scm b/runtime/queries/protobuf/highlights.scm
index 4597dd5a6..cd021be1a 100644
--- a/runtime/queries/protobuf/highlights.scm
+++ b/runtime/queries/protobuf/highlights.scm
@@ -14,6 +14,7 @@
   "to"
   "stream"
   "extend"
+  "optional"
 ] @keyword
 
 [
@@ -23,7 +24,6 @@
 
 [
   (mapName)
-  (oneofName)
   (enumName)
   (messageName)
   (extendName)