diff --git a/pom.xml b/pom.xml
index d1385b517..d5e5a81fe 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
     -->
     <guava.jre.version>33.4.0-jre</guava.jre.version>
     <gwt.version>2.11.0</gwt.version>
-    <protobuf.version>4.29.3</protobuf.version>
+    <protobuf.version>4.30.0</protobuf.version>
     <!-- Property for protobuf-lite protocArtifact, which isn't a "normal" Maven dep. -->
     <!-- TODO(cpovirk): Use protobuf.version instead. But that requires finding the new way to request the Lite runtime. -->
     <protobuf-lite.protoc.version>3.1.0</protobuf-lite.protoc.version>