diff --git a/library/pom.xml b/library/pom.xml
index d8142f3..c92e443 100644
--- a/library/pom.xml
+++ b/library/pom.xml
@@ -38,7 +38,7 @@
     <dependency>
       <groupId>org.apache.santuario</groupId>
       <artifactId>xmlsec</artifactId>
-      <version>2.3.4</version>
+      <version>4.0.4</version>
     </dependency>
     <dependency>
       <groupId>com.nimbusds</groupId>