diff --git a/buildSrc/version.properties b/buildSrc/version.properties
index 490e16de93ba0..d6b679a96c6ab 100644
--- a/buildSrc/version.properties
+++ b/buildSrc/version.properties
@@ -2,7 +2,7 @@ opensearch        = 2.18.0
 lucene            = 9.12.0
 
 bundled_jdk_vendor = adoptium
-bundled_jdk = 23+37
+bundled_jdk = 21.0.4+7
 
 # optional dependencies
 spatial4j         = 0.7