diff --git a/backend/src/test/java/ch/puzzle/okr/service/business/QuarterBusinessServiceTest.java b/backend/src/test/java/ch/puzzle/okr/service/business/QuarterBusinessServiceTest.java
index 6d9dc35f72..b5f1b78142 100644
--- a/backend/src/test/java/ch/puzzle/okr/service/business/QuarterBusinessServiceTest.java
+++ b/backend/src/test/java/ch/puzzle/okr/service/business/QuarterBusinessServiceTest.java
@@ -1,9 +1,6 @@
 package ch.puzzle.okr.service.business;
 
-import ch.puzzle.okr.models.Objective;
 import ch.puzzle.okr.models.Quarter;
-import ch.puzzle.okr.models.Team;
-import ch.puzzle.okr.models.User;
 import ch.puzzle.okr.service.persistence.QuarterPersistenceService;
 import ch.puzzle.okr.service.validation.QuarterValidationService;
 import org.junit.jupiter.api.Test;
@@ -12,17 +9,23 @@
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 import org.junit.jupiter.params.provider.ValueSource;
-import org.mockito.*;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.Mockito;
+import org.mockito.Spy;
 import org.mockito.junit.jupiter.MockitoExtension;
 import org.springframework.test.util.ReflectionTestUtils;
 
 import java.time.LocalDate;
-import java.time.LocalDateTime;
 import java.time.YearMonth;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
 import java.util.stream.Stream;
 
-import static org.junit.jupiter.api.Assertions.*;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNull;
 import static org.mockito.Mockito.*;
 
 @ExtendWith(MockitoExtension.class)