diff --git a/pbj-core/hiero-dependency-versions/build.gradle.kts b/pbj-core/hiero-dependency-versions/build.gradle.kts
index bc6db082..ee3f48b4 100644
--- a/pbj-core/hiero-dependency-versions/build.gradle.kts
+++ b/pbj-core/hiero-dependency-versions/build.gradle.kts
@@ -9,7 +9,7 @@ val protobuf = "4.34.1"
 val junit5 = "6.0.3"
 val mockito = "5.23.0"
 
-dependencies { api(platform("io.netty:netty-bom:4.2.12.Final")) }
+dependencies { api(platform("io.netty:netty-bom:4.2.13.Final")) }
 
 dependencies.constraints {
     api("org.antlr:antlr4-runtime:$antlr") { because("org.antlr.antlr4.runtime") }