diff --git a/pom.xml b/pom.xml
index bb59672..6d0fc8a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -70,7 +70,7 @@
     <dependency>
       <groupId>com.amazon.ion</groupId>
       <artifactId>ion-java</artifactId>
-      <version>1.4.0</version>
+      <version>1.10.5</version>
     </dependency>
 
     <!-- test dependencies -->