diff --git a/orchid/pom.xml b/orchid/pom.xml
index d54d9cb..6bf1ab5 100644
--- a/orchid/pom.xml
+++ b/orchid/pom.xml
@@ -13,7 +13,7 @@
    <packaging>war</packaging>
    <properties>
       <plantuml.version>1.2019.11</plantuml.version>
-      <shiro.version>1.3.2</shiro.version>
+      <shiro.version>1.9.1</shiro.version>
       <jgit.version>4.0.1.201506240215-r</jgit.version>
       <commons-exec.version>1.1</commons-exec.version>
    </properties>