diff --git a/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigRefreshTest.java b/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigRefreshTest.java
index 10de18e..c080127 100644
--- a/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigRefreshTest.java
+++ b/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigRefreshTest.java
@@ -114,7 +114,7 @@ void testConnection() throws SQLException {
      * Tear up postgres server.
      */
     @AfterAll
-    public static void tearUpPostgresServer() {
+    static void tearUpPostgresServer() {
         postgresqlContainer.stop();
     }
 }
diff --git a/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigTest.java b/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigTest.java
index 31b1ab7..996db0b 100644
--- a/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigTest.java
+++ b/src/test/java/org/eclipse/ecsp/sql/postgress/config/PostgresDbConfigTest.java
@@ -101,7 +101,7 @@ void testConnection() throws SQLException {
      * Tear up postgres server.
      */
     @AfterAll
-    public static void tearUpPostgresServer() {
+    static void tearUpPostgresServer() {
         postgresqlContainer.stop();
     }
 }