diff --git a/backend/pom.xml b/backend/pom.xml
index 27a433b345..5b9bc2b9f5 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -165,7 +165,7 @@
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-collections4</artifactId>
-            <version>4.4</version>
+            <version>4.6.0</version>
         </dependency>
         <dependency>
             <groupId>it.unimi.dsi</groupId>