diff --git a/pom.xml b/pom.xml
index 1b78226..e4547df 100644
--- a/pom.xml
+++ b/pom.xml
@@ -61,7 +61,7 @@
     <dependency>
       <groupId>net.sf.py4j</groupId>
       <artifactId>py4j</artifactId>
-      <version>0.10.9.2</version>
+      <version>0.10.9</version>
     </dependency>
     <dependency>
       <groupId>uk.ac.gate.libraries</groupId>
@@ -85,7 +85,7 @@
     <dependency>
       <groupId>com.fasterxml.jackson.jr</groupId>
       <artifactId>jackson-jr-objects</artifactId>
-      <version>2.10.3</version>
+      <version>2.13.0</version>
       <exclusions>
         <exclusion>
           <groupId>com.fasterxml.jackson.core</groupId>