diff --git a/tool_files/maven_3_3_9/floodgage/pom.xml b/tool_files/maven_3_3_9/floodgage/pom.xml
index 6ade28e0..178b7b8b 100644
--- a/tool_files/maven_3_3_9/floodgage/pom.xml
+++ b/tool_files/maven_3_3_9/floodgage/pom.xml
@@ -94,7 +94,7 @@
       <dependency>
           <groupId>com.google.code.gson</groupId>
           <artifactId>gson</artifactId>
-          <version>2.8.0</version>
+          <version>2.8.9</version>
       </dependency>
       <dependency>
           <groupId>com.google.guava</groupId>