diff --git a/pom.xml b/pom.xml
index 433b3c2..c128431 100644
--- a/pom.xml
+++ b/pom.xml
@@ -232,7 +232,7 @@
         <dependency>
             <groupId>org.hdrhistogram</groupId>
             <artifactId>HdrHistogram</artifactId>
-            <version>2.1.12</version>
+            <version>2.2.1</version>
         </dependency>
     </dependencies>