diff --git a/samples/client/petstore/java/retrofit2/pom.xml b/samples/client/petstore/java/retrofit2/pom.xml
index 10c1ec0dc8b2..e67eee414ae3 100644
--- a/samples/client/petstore/java/retrofit2/pom.xml
+++ b/samples/client/petstore/java/retrofit2/pom.xml
@@ -267,7 +267,7 @@
         <maven.compiler.target>${java.version}</maven.compiler.target>
         <gson-fire-version>1.8.3</gson-fire-version>
         <swagger-annotations-version>1.5.22</swagger-annotations-version>
-        <retrofit-version>2.5.0</retrofit-version>
+        <retrofit-version>2.10.0</retrofit-version>
         <threetenbp-version>1.4.0</threetenbp-version>
         <javax-annotation-version>1.3.2</javax-annotation-version>
         <oltu-version>1.0.1</oltu-version>