diff --git a/src/main/java/table_view/JDBCDialect.java b/src/main/java/table_view/JDBCDialect.java
index 4f3324ead6d07d6e420577c961db34a31b940e5b..deca9f0cacf2b9115138a990e94073781709a5b2 100644
--- a/src/main/java/table_view/JDBCDialect.java
+++ b/src/main/java/table_view/JDBCDialect.java
@@ -1,6 +1,6 @@
 package table_view;
 
-public interface JDBCDialect {
+interface JDBCDialect {
 	String getDriverClazzName();
 	String getDriverID();
 	String getCreateTable();
diff --git a/src/main/java/table_view/Person.java b/src/main/java/table_view/Person.java
index 3f360d0dacbab3770f8f1cf3951f3dc67933bc17..01f9f48ed27e534829784e533a19476c76d28432 100644
--- a/src/main/java/table_view/Person.java
+++ b/src/main/java/table_view/Person.java
@@ -2,7 +2,7 @@ package table_view;
 
 import javafx.beans.property.SimpleStringProperty;
 
-public class Person {
+class Person {
 
 	private final Long id;
     private final SimpleStringProperty firstName;
diff --git a/src/main/java/table_view/PersonDAO.java b/src/main/java/table_view/PersonDAO.java
index badc31dfa40a13d2f61c7229f5da07aa4ef935f6..7827883ad7405827dee5ae706b24a2f9b4779cf8 100644
--- a/src/main/java/table_view/PersonDAO.java
+++ b/src/main/java/table_view/PersonDAO.java
@@ -9,8 +9,7 @@ import java.sql.Statement;
 import java.util.Collection;
 import java.util.LinkedList;
 
-
-public class PersonDAO implements AutoCloseable{
+class PersonDAO implements AutoCloseable{
 
 	private static final String INSERT_SQL = "INSERT INTO person(first_name, last_name, email) values (?,?,?)";
 
diff --git a/src/main/java/table_view/PostgresqlJDBCDialect.java b/src/main/java/table_view/PostgresqlJDBCDialect.java
index 3ba78fcfc1be51957e779953321d1e8900aaaccf..1e6c5faf58c822704a0a72ee6f2dd89b80d9de64 100644
--- a/src/main/java/table_view/PostgresqlJDBCDialect.java
+++ b/src/main/java/table_view/PostgresqlJDBCDialect.java
@@ -1,6 +1,6 @@
 package table_view;
 
-public class PostgresqlJDBCDialect implements JDBCDialect{
+class PostgresqlJDBCDialect implements JDBCDialect{
 
 	@Override
 	public String getDriverClazzName() {