diff --git a/services/postprocessor/pom.xml b/services/postprocessor/pom.xml
index 72352d2..3fb07a1 100644
--- a/services/postprocessor/pom.xml
+++ b/services/postprocessor/pom.xml
@@ -85,7 +85,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.6</version>
+            <version>2.8.9</version>
         </dependency>
 
         <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->