diff --git a/spring-webflux/src/main/java/org/springframework/web/reactive/config/ApiVersionConfigurer.java b/spring-webflux/src/main/java/org/springframework/web/reactive/config/ApiVersionConfigurer.java
index 22119b0f14b..f43aff028d2 100644
--- a/spring-webflux/src/main/java/org/springframework/web/reactive/config/ApiVersionConfigurer.java
+++ b/spring-webflux/src/main/java/org/springframework/web/reactive/config/ApiVersionConfigurer.java
@@ -133,6 +133,10 @@ public ApiVersionConfigurer setVersionParser(@Nullable ApiVersionParser<?> versi
 	 */
 	public ApiVersionConfigurer setVersionRequired(boolean required) {
 		this.versionRequired = required;
+
+		if(required && this.versionResolvers.isEmpty()) {
+			throw new IllegalStateException("API Versioning is required but no version resolvers are configured");
+		}
 		return this;
 	}