diff --git a/services/customiser/code/pom.xml b/services/customiser/code/pom.xml
index 7dbc0c1..cc11e29 100644
--- a/services/customiser/code/pom.xml
+++ b/services/customiser/code/pom.xml
@@ -17,7 +17,7 @@
          <dependency>
              <groupId>com.google.code.gson</groupId>
              <artifactId>gson</artifactId>
-             <version>2.8.6</version>
+             <version>2.8.9</version>
          </dependency>
          <dependency>
              <groupId>commons-io</groupId>