diff --git a/reference-data/omod/pom.xml b/reference-data/omod/pom.xml
index 4461dca8e..045774b0a 100644
--- a/reference-data/omod/pom.xml
+++ b/reference-data/omod/pom.xml
@@ -114,7 +114,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.2.5</version>
+            <version>4.5.13</version>
             <scope>test</scope>
         </dependency>
         <dependency>