diff --git a/spring-web/src/test/java/org/springframework/protobuf/OuterSample.java b/spring-web/src/test/java/org/springframework/protobuf/OuterSample.java
index b0c36ed5c72ebb80e5836a53af7b6c5838741413..afafe62772e6e6b91a3df21ce2631df6e617f97a 100644
--- a/spring-web/src/test/java/org/springframework/protobuf/OuterSample.java
+++ b/spring-web/src/test/java/org/springframework/protobuf/OuterSample.java
@@ -3,6 +3,7 @@
 
 package org.springframework.protobuf;
 
+@SuppressWarnings("deprecation")
 public class OuterSample {
   private OuterSample() {}
   public static void registerAllExtensions(
diff --git a/spring-webflux/src/test/java/org/springframework/web/reactive/protobuf/OuterSample.java b/spring-webflux/src/test/java/org/springframework/web/reactive/protobuf/OuterSample.java
index c6e59e4ecf7788fd2697ccb19b048b994ee164b1..01239dfdf84dd4acd7cf409c4ff2e76daa56885c 100644
--- a/spring-webflux/src/test/java/org/springframework/web/reactive/protobuf/OuterSample.java
+++ b/spring-webflux/src/test/java/org/springframework/web/reactive/protobuf/OuterSample.java
@@ -3,6 +3,7 @@
 
 package org.springframework.web.reactive.protobuf;
 
+@SuppressWarnings("deprecation")
 public class OuterSample {
   private OuterSample() {}
   public static void registerAllExtensions(