diff --git a/modules/openapi-generator/src/main/resources/kotlin-vertx-server/pom.mustache b/modules/openapi-generator/src/main/resources/kotlin-vertx-server/pom.mustache
index e26747f3da..f56e05ab94 100644
--- a/modules/openapi-generator/src/main/resources/kotlin-vertx-server/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/kotlin-vertx-server/pom.mustache
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.5</version>
+            <version>2.8.9</version>
         </dependency>
 
         <dependency>
diff --git a/samples/server/petstore/kotlin-vertx-modelMutable/pom.xml b/samples/server/petstore/kotlin-vertx-modelMutable/pom.xml
index 4bf0da66ad..2287fb9386 100644
--- a/samples/server/petstore/kotlin-vertx-modelMutable/pom.xml
+++ b/samples/server/petstore/kotlin-vertx-modelMutable/pom.xml
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.5</version>
+            <version>2.8.9</version>
         </dependency>
 
         <dependency>
diff --git a/samples/server/petstore/kotlin/vertx/pom.xml b/samples/server/petstore/kotlin/vertx/pom.xml
index 4bf0da66ad..2287fb9386 100644
--- a/samples/server/petstore/kotlin/vertx/pom.xml
+++ b/samples/server/petstore/kotlin/vertx/pom.xml
@@ -47,7 +47,7 @@
         <dependency>
             <groupId>com.google.code.gson</groupId>
             <artifactId>gson</artifactId>
-            <version>2.8.5</version>
+            <version>2.8.9</version>
         </dependency>
 
         <dependency>