diff --git a/pom.xml b/pom.xml
index 136db4e76f2..dd8c46d6e9b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -156,7 +156,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents.client5</groupId>
             <artifactId>httpclient5</artifactId>
-            <version>5.2.1</version>
+            <version>5.6.3</version>
         </dependency>
     
         <!-- BEGIN Data Deposit API v1 (SWORD v2) -->