diff --git a/oidc-playground-server/pom.xml b/oidc-playground-server/pom.xml
index 76eb7c0..bc7000d 100644
--- a/oidc-playground-server/pom.xml
+++ b/oidc-playground-server/pom.xml
@@ -53,7 +53,7 @@
         <dependency>
             <groupId>commons-io</groupId>
             <artifactId>commons-io</artifactId>
-            <version>2.15.0</version>
+            <version>2.20.0</version>
         </dependency>
         <dependency>
             <groupId>com.sun.mail</groupId>