diff --git a/sit-wt-util/pom.xml b/sit-wt-util/pom.xml
index 803feb4d..51534b8e 100644
--- a/sit-wt-util/pom.xml
+++ b/sit-wt-util/pom.xml
@@ -12,7 +12,7 @@
     <dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-compress</artifactId>
-      <version>1.20</version>
+      <version>1.21</version>
     </dependency>
     <dependency>
       <groupId>io.takari</groupId>