diff --git a/Billing/pom.xml b/Billing/pom.xml
index bac5872..a3add7e 100644
--- a/Billing/pom.xml
+++ b/Billing/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>2.8.1</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>