diff --git a/pom.xml b/pom.xml
index 9143814968..77773a2f54 100644
--- a/pom.xml
+++ b/pom.xml
@@ -852,7 +852,7 @@
 
     <!-- security libraries -->
     <ssp.version>1.2.0</ssp.version>
-    <shiro.version>1.4.1</shiro.version>
+    <shiro.version>1.5.1</shiro.version>
 
     <!-- repository libraries -->
     <jgit.version>5.6.1.202002131546-r-scm1</jgit.version>