diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/MapBinderTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/MapBinderTests.java
index cb03bcebc45..3e4b0f8d2cd 100644
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/MapBinderTests.java
+++ b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/context/properties/bind/MapBinderTests.java
@@ -24,6 +24,7 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Properties;
+import java.util.SortedMap;
 import java.util.stream.Collectors;
 
 import org.junit.jupiter.api.Test;
@@ -244,7 +245,7 @@ class MapBinderTests {
 		existing.put("baz", 1001);
 		Bindable<Map<String, Integer>> target = STRING_INTEGER_MAP.withExistingValue(existing);
 		Map<String, Integer> result = this.binder.bind("foo", target).get();
-		assertThat(result).isExactlyInstanceOf(HashMap.class);
+		assertThat(result).isInstanceOf(HashMap.class);
 		assertThat(result).hasSize(2);
 		assertThat(result).containsEntry("bar", 1);
 		assertThat(result).containsEntry("baz", 1001);
@@ -253,10 +254,10 @@ class MapBinderTests {
 	@Test
 	void bindToMapShouldRespectMapType() {
 		this.sources.add(new MockConfigurationPropertySource("foo.bar", "1"));
-		ResolvableType type = ResolvableType.forClassWithGenerics(HashMap.class, String.class, Integer.class);
+		ResolvableType type = ResolvableType.forClassWithGenerics(SortedMap.class, String.class, Integer.class);
 		Object defaultMap = this.binder.bind("foo", STRING_INTEGER_MAP).get();
 		Object customMap = this.binder.bind("foo", Bindable.of(type)).get();
-		assertThat(customMap).isExactlyInstanceOf(HashMap.class).isNotInstanceOf(defaultMap.getClass());
+		assertThat(customMap).isInstanceOf(SortedMap.class).isNotInstanceOf(defaultMap.getClass());
 	}
 
 	@Test