diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/UndertowHttpHandlerAdapter.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/UndertowHttpHandlerAdapter.java
index 929c4a946b..f25bd17a9e 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/UndertowHttpHandlerAdapter.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/UndertowHttpHandlerAdapter.java
@@ -38,7 +38,7 @@ import org.xnio.channels.StreamSourceChannel;
 import reactor.core.publisher.Mono;
 import reactor.core.subscriber.BaseSubscriber;
 import reactor.core.subscription.BackpressureUtils;
-import reactor.core.support.Exceptions;
+import reactor.core.util.Exceptions;
 
 import org.springframework.util.Assert;
 
diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/WriteWithOperator.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/WriteWithOperator.java
index 2f23abf73c..873a0e6407 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/WriteWithOperator.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/WriteWithOperator.java
@@ -19,7 +19,7 @@ import org.reactivestreams.Publisher;
 import org.reactivestreams.Subscriber;
 import org.reactivestreams.Subscription;
 import reactor.core.subscriber.SubscriberBarrier;
-import reactor.core.support.Assert;
+import reactor.core.util.Assert;
 import reactor.fn.Function;
 
 
diff --git a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/boot/ReactorHttpServer.java b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/boot/ReactorHttpServer.java
index e575fc82b8..757e6e6810 100644
--- a/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/boot/ReactorHttpServer.java
+++ b/spring-web-reactive/src/main/java/org/springframework/http/server/reactive/boot/ReactorHttpServer.java
@@ -16,7 +16,7 @@
 
 package org.springframework.http.server.reactive.boot;
 
-import reactor.core.support.ReactiveState;
+import reactor.core.util.ReactiveState;
 import reactor.io.buffer.Buffer;
 import reactor.io.net.ReactiveNet;