diff --git a/modules/reference/partner-data-layer/pom.xml b/modules/reference/partner-data-layer/pom.xml
index ff27619..4064df7 100644
--- a/modules/reference/partner-data-layer/pom.xml
+++ b/modules/reference/partner-data-layer/pom.xml
@@ -72,7 +72,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.3.4</version>
+            <version>4.5.13</version>
         </dependency>
 <dependency>
     <groupId>com.github.jsonld-java</groupId>