diff --git a/Collectors/OpenstackEvent/OpenstackUsageGenerator/pom.xml b/Collectors/OpenstackEvent/OpenstackUsageGenerator/pom.xml
index 0c298aa..bba6910 100644
--- a/Collectors/OpenstackEvent/OpenstackUsageGenerator/pom.xml
+++ b/Collectors/OpenstackEvent/OpenstackUsageGenerator/pom.xml
@@ -24,7 +24,7 @@
         <hikari-version>2.6.3</hikari-version>
         <postgresql-version>42.1.1</postgresql-version>
         <gson-fire-version>1.8.0</gson-fire-version>
-        <gson-version>2.7</gson-version>
+        <gson-version>2.8.9</gson-version>
         <json-version>20160810</json-version>
         <metapossum-version>1.0.1</metapossum-version>
         <evo-version>1.2.1</evo-version>