diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfiguration.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfiguration.java
index 5426b6f17f..746bbe4587 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfiguration.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfiguration.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -129,10 +129,8 @@ public class MongoReactiveAutoConfiguration {
 			}
 		}
 
-		@SuppressWarnings("deprecation")
 		private boolean isCustomTransportConfiguration(MongoClientSettings settings) {
-			return settings != null
-					&& (settings.getTransportSettings() != null || settings.getStreamFactoryFactory() != null);
+			return settings != null && settings.getTransportSettings() != null;
 		}
 
 	}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfigurationTests.java
index df46e4b459..d127289452 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/mongo/MongoReactiveAutoConfigurationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2023 the original author or authors.
+ * Copyright 2012-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -230,7 +230,6 @@ class MongoReactiveAutoConfigurationTests {
 				assertThat(settings.getApplicationName()).isEqualTo("custom-transport-settings");
 				assertThat(settings.getTransportSettings())
 					.isSameAs(SimpleTransportSettingsCustomizerConfig.transportSettings);
-				assertThat(settings.getStreamFactoryFactory()).isNull();
 			});
 	}
 
diff --git a/spring-boot-project/spring-boot-dependencies/build.gradle b/spring-boot-project/spring-boot-dependencies/build.gradle
index 6b96b3c9a5..db1cf23f50 100644
--- a/spring-boot-project/spring-boot-dependencies/build.gradle
+++ b/spring-boot-project/spring-boot-dependencies/build.gradle
@@ -1286,7 +1286,7 @@ bom {
 			releaseNotes("https://github.com/mockito/mockito/releases/tag/v{version}")
 		}
 	}
-	library("MongoDB", "4.11.1") {
+	library("MongoDB", "5.0.0") {
 		group("org.mongodb") {
 			modules = [
 				"bson",