diff --git a/bitcoin-neo4j/project-back-end/pom.xml b/bitcoin-neo4j/project-back-end/pom.xml
index 1614e4208..ac565dae3 100644
--- a/bitcoin-neo4j/project-back-end/pom.xml
+++ b/bitcoin-neo4j/project-back-end/pom.xml
@@ -83,7 +83,7 @@
         <dependency>
             <groupId>org.neo4j.test</groupId>
             <artifactId>neo4j-harness</artifactId>
-            <version>4.1.3</version>
+            <version>4.2.1</version>
             <exclusions>
                 <exclusion>
                     <artifactId>slf4j-nop</artifactId>