diff --git a/nerve/quotation/pom.xml b/nerve/quotation/pom.xml
index 85c050fab..1ca66f950 100644
--- a/nerve/quotation/pom.xml
+++ b/nerve/quotation/pom.xml
@@ -135,7 +135,7 @@
     <dependency>
       <groupId>org.apache.commons</groupId>
       <artifactId>commons-collections4</artifactId>
-      <version>4.0</version>
+      <version>4.1</version>
       <scope>compile</scope>
     </dependency>
     <dependency>