diff --git a/mix/pom.xml b/mix/pom.xml
index 228616e..282fd89 100644
--- a/mix/pom.xml
+++ b/mix/pom.xml
@@ -30,7 +30,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-compress</artifactId>
-            <version>1.20</version>
+            <version>1.21</version>
         </dependency>
 
         <dependency>