diff --git a/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/data/RandomAccessDataFileTests.java b/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/data/RandomAccessDataFileTests.java
index c156ccf048a..b95498ef9d1 100644
--- a/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/data/RandomAccessDataFileTests.java
+++ b/spring-boot-tools/spring-boot-loader/src/test/java/org/springframework/boot/loader/data/RandomAccessDataFileTests.java
@@ -37,7 +37,7 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 import org.junit.rules.TemporaryFolder;
-import org.mockito.internal.util.MockUtil;
+import org.mockito.Mockito;
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
@@ -47,9 +47,9 @@ import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.junit.Assert.fail;
+import static org.mockito.ArgumentMatchers.anyLong;
 import static org.mockito.BDDMockito.willAnswer;
 import static org.mockito.BDDMockito.willThrow;
-import static org.mockito.Matchers.anyLong;
 import static org.mockito.Mockito.spy;
 
 /**
@@ -333,7 +333,7 @@ public class RandomAccessDataFileTests {
 			public RandomAccessFile answer(InvocationOnMock invocation) throws Throwable {
 				RandomAccessFile originalFile = (RandomAccessFile) invocation
 						.callRealMethod();
-				if (new MockUtil().isSpy(originalFile)) {
+				if (Mockito.isSpy(originalFile)) {
 					return originalFile;
 				}
 				RandomAccessFile spiedFile = spy(originalFile);