diff --git a/spring-boot-project/spring-boot-dependencies/build.gradle b/spring-boot-project/spring-boot-dependencies/build.gradle
index b3b2264259..8438e8d96f 100644
--- a/spring-boot-project/spring-boot-dependencies/build.gradle
+++ b/spring-boot-project/spring-boot-dependencies/build.gradle
@@ -1656,7 +1656,7 @@ bom {
 			]
 		}
 	}
-	library("Sun Mail", "1.6.5") {
+	library("Sun Mail", "1.6.6") {
 		group("com.sun.mail") {
 			modules = [
 				"jakarta.mail"