diff --git a/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPACriteriaQueryTest.java b/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPACriteriaQueryTest.java
index f9f9435d75..e9c8659347 100644
--- a/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPACriteriaQueryTest.java
+++ b/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPACriteriaQueryTest.java
@@ -98,7 +98,7 @@ public class JPACriteriaQueryTest {
     @Test
     public void givenPartialFirst_whenGettingListOfUsers_thenCorrect() {
         final List<SearchCriteria> params = new ArrayList<SearchCriteria>();
-        params.add(new SearchCriteria("firstName", ":", "jo"));
+        params.add(new SearchCriteria("firstName", ":", "Jo"));
 
         final List<User> results = userApi.searchUser(params);
 
diff --git a/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPASpecificationTest.java b/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPASpecificationTest.java
index 97b2274cf9..52bd43cc8c 100644
--- a/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPASpecificationTest.java
+++ b/spring-security-rest-full/src/test/java/org/baeldung/persistence/query/JPASpecificationTest.java
@@ -54,8 +54,8 @@ public class JPASpecificationTest {
 
     @Test
     public void givenFirstAndLastName_whenGettingListOfUsers_thenCorrect() {
-        final UserSpecification spec = new UserSpecification(new SpecSearchCriteria("firstName", SearchOperation.EQUALITY, "john"));
-        final UserSpecification spec1 = new UserSpecification(new SpecSearchCriteria("lastName", SearchOperation.EQUALITY, "doe"));
+        final UserSpecification spec = new UserSpecification(new SpecSearchCriteria("firstName", SearchOperation.EQUALITY, "John"));
+        final UserSpecification spec1 = new UserSpecification(new SpecSearchCriteria("lastName", SearchOperation.EQUALITY, "Doe"));
         final List<User> results = repository.findAll(Specifications.where(spec).and(spec1));
 
         assertThat(userJohn, isIn(results));
@@ -64,7 +64,7 @@ public class JPASpecificationTest {
 
     @Test
     public void givenFirstNameInverse_whenGettingListOfUsers_thenCorrect() {
-        final UserSpecification spec = new UserSpecification(new SpecSearchCriteria("firstName", SearchOperation.NEGATION, "john"));
+        final UserSpecification spec = new UserSpecification(new SpecSearchCriteria("firstName", SearchOperation.NEGATION, "John"));
         final List<User> results = repository.findAll(Specifications.where(spec));
 
         assertThat(userTom, isIn(results));
@@ -82,7 +82,7 @@ public class JPASpecificationTest {
 
     @Test
     public void givenFirstNamePrefix_whenGettingListOfUsers_thenCorrect() {
-        final UserSpecification spec = new UserSpecification(new SpecSearchCriteria("firstName", SearchOperation.STARTS_WITH, "jo"));
+        final UserSpecification spec = new UserSpecification(new SpecSearchCriteria("firstName", SearchOperation.STARTS_WITH, "Jo"));
         final List<User> results = repository.findAll(spec);
 
         assertThat(userJohn, isIn(results));