diff --git a/pom.xml b/pom.xml
index 03cdb6b42..9c766e503 100755
--- a/pom.xml
+++ b/pom.xml
@@ -44,11 +44,17 @@
             <dependency>
                 <groupId>net.openhft</groupId>
                 <artifactId>chronicle-bom</artifactId>
-                <version>1.5.8</version>
+                <version>1.5.9</version>
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
-            
+
+            <dependency>
+                <groupId>net.openhft</groupId>
+                <artifactId>affinity</artifactId>
+                <version>2.2</version>
+            </dependency>
+
         </dependencies>
 
     </dependencyManagement>