diff --git a/samples/client/petstore/java/retrofit2rx2/pom.xml b/samples/client/petstore/java/retrofit2rx2/pom.xml
index 6fac9aa35c34..3eb9d0896721 100644
--- a/samples/client/petstore/java/retrofit2rx2/pom.xml
+++ b/samples/client/petstore/java/retrofit2rx2/pom.xml
@@ -272,7 +272,7 @@
${java.version}
1.9.0
1.6.3
- 2.11.0
+ 2.12.0
2.1.1
1.3.5
2.0.2