diff --git a/build.sbt b/build.sbt
index 4e945fc..3e3edc5 100644
--- a/build.sbt
+++ b/build.sbt
@@ -14,7 +14,7 @@ val magnolifyVersion = "0.7.4"
 val parquetVersion =
   "1.13.1" // scala-steward:off Wait fix https://github.com/apache/parquet-java/issues/3016
 val protobufGenericVersion = "0.2.9"
-val protobufVersion = "4.28.2"
+val protobufVersion = "4.28.3"
 val scalatestVersion = "3.2.19"
 val slf4jReload4jVersion2 = "2.0.16"
 val slf4jReload4jVersion1 = "1.7.36" // scala-steward:off