diff --git a/pbj-core/hiero-dependency-versions/build.gradle.kts b/pbj-core/hiero-dependency-versions/build.gradle.kts
index ee3f48b4..161457a5 100644
--- a/pbj-core/hiero-dependency-versions/build.gradle.kts
+++ b/pbj-core/hiero-dependency-versions/build.gradle.kts
@@ -4,7 +4,7 @@ group = "com.hedera.hashgraph"
 val antlr = "4.13.2"
 val grpc = "1.81.0"
 val helidon = "4.4.1"
-val protobuf = "4.34.1"
+val protobuf = "4.35.0"
 
 val junit5 = "6.0.3"
 val mockito = "5.23.0"