diff --git a/platform/spring-boot-dependencies/build.gradle b/platform/spring-boot-dependencies/build.gradle
index cf2224ea431..974c99a69cf 100644
--- a/platform/spring-boot-dependencies/build.gradle
+++ b/platform/spring-boot-dependencies/build.gradle
@@ -1902,7 +1902,7 @@ bom {
 			releaseNotes("https://github.com/oracle/oracle-r2dbc/releases/tag/{version}")
 		}
 	}
-	library("Protobuf Maven Plugin", "5.1.8") {
+	library("Protobuf Maven Plugin", "5.1.9") {
 		group("io.github.ascopes") {
 			plugins = [
 				"protobuf-maven-plugin"