diff --git a/athena-neptune/pom.xml b/athena-neptune/pom.xml
index fe275e64f7..4d9d58dd40 100644
--- a/athena-neptune/pom.xml
+++ b/athena-neptune/pom.xml
@@ -11,7 +11,7 @@
     <properties>
         <!-- make sure gremlin driver version stays within the Neptune supported range -->
         <gremlinDriverVersion>3.7.3</gremlinDriverVersion>
-        <neptune.sigv4.signer.version>2.4.0</neptune.sigv4.signer.version>
+        <neptune.sigv4.signer.version>3.1.0</neptune.sigv4.signer.version>
     </properties>
     <dependencies>
         <dependency>