diff --git a/bzst-dip-java-client/pom.xml b/bzst-dip-java-client/pom.xml
index e962283..4257167 100644
--- a/bzst-dip-java-client/pom.xml
+++ b/bzst-dip-java-client/pom.xml
@@ -70,7 +70,7 @@
 		<dependency>
 			<groupId>org.apache.httpcomponents.client5</groupId>
 			<artifactId>httpclient5</artifactId>
-			<version>5.5.1</version>
+			<version>5.6</version>
 		</dependency>
 
 		<!-- JSON processing: jackson -->