diff --git a/modules/lang-mustache/build.gradle b/modules/lang-mustache/build.gradle
index 14eafd8d43e13..56aa3c5714484 100644
--- a/modules/lang-mustache/build.gradle
+++ b/modules/lang-mustache/build.gradle
@@ -38,7 +38,7 @@ opensearchplugin {
 }
 
 dependencies {
-  api "com.github.spullara.mustache.java:compiler:0.9.10"
+  api "com.github.spullara.mustache.java:compiler:0.9.12"
 }
 
 restResources {