diff --git a/.env.dist b/.env.dist
index 2f438a0..219477e 100644
--- a/.env.dist
+++ b/.env.dist
@@ -24,6 +24,8 @@ GONETTE_SMTP_PASSWORD= pass
 
 MAIL_RECIPIENT=test@example.com
 
+DATABASE_RETENTION_PAYMENT_DAY=7
+
 # must be 'true' or 'false'
 PAYMENT_CYCLOS_ENABLED=true
 PAYMENT_AUTOMATIC_ENABLED=false
\ No newline at end of file
diff --git a/src/main/java/org/lagonette/hellos/service/PurgeDatabaseService.java b/src/main/java/org/lagonette/hellos/service/PurgeDatabaseService.java
index 8ef942b..631505b 100644
--- a/src/main/java/org/lagonette/hellos/service/PurgeDatabaseService.java
+++ b/src/main/java/org/lagonette/hellos/service/PurgeDatabaseService.java
@@ -1,9 +1,9 @@
 package org.lagonette.hellos.service;
 
+import io.github.cdimascio.dotenv.Dotenv;
 import org.lagonette.hellos.repository.PaymentRepository;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 import org.springframework.transaction.annotation.Transactional;
@@ -16,12 +16,11 @@ public class PurgeDatabaseService {
     private final Logger LOGGER = LoggerFactory.getLogger(this.getClass());
 
     private final PaymentRepository paymentRepository;
+    private final Dotenv dotenv;
 
-    @Value("${database.retention.payment.days}")
-    private int nbOfDaysForPayments;
-
-    public PurgeDatabaseService(PaymentRepository paymentRepository) {
+    public PurgeDatabaseService(PaymentRepository paymentRepository, Dotenv dotenv) {
         this.paymentRepository = paymentRepository;
+         this.dotenv = dotenv;
     }
 
     @Transactional
@@ -29,6 +28,7 @@ public PurgeDatabaseService(PaymentRepository paymentRepository) {
     public void purgeDatabase() {
         LOGGER.info("Begin of the database purge");
 
+        long nbOfDaysForPayments = Long.parseLong(dotenv.get("DATABASE_RETENTION_PAYMENT_DAY"));
         // Payment purge
         List<Integer> paymentsToDelete = paymentRepository.findIdsByInsertionDateBefore(LocalDateTime.now().minusDays(nbOfDaysForPayments));
         int paymentsSize = paymentsToDelete.size();
diff --git a/src/main/resources/application.properties b/src/main/resources/application.properties
index 9ac975f..7744688 100644
--- a/src/main/resources/application.properties
+++ b/src/main/resources/application.properties
@@ -1,7 +1,6 @@
 ###################
 # Database config #
 ###################
-database.retention.payment.days=7
 database.purge.cron=0 0 0 * * *
 # To use when application is behind a proxy responsible for HTTPS management
 server.use-forward-headers=true
diff --git a/src/test/java/org/lagonette/hellos/service/PurgeDatabaseServiceTest.java b/src/test/java/org/lagonette/hellos/service/PurgeDatabaseServiceTest.java
index 21a1394..243cc16 100644
--- a/src/test/java/org/lagonette/hellos/service/PurgeDatabaseServiceTest.java
+++ b/src/test/java/org/lagonette/hellos/service/PurgeDatabaseServiceTest.java
@@ -1,5 +1,7 @@
 package org.lagonette.hellos.service;
 
+import io.github.cdimascio.dotenv.Dotenv;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.lagonette.hellos.repository.PaymentRepository;
@@ -19,9 +21,18 @@ class PurgeDatabaseServiceTest {
     @Mock
     private PaymentRepository paymentRepository;
 
+    @Mock
+    private Dotenv dotenv;
+
+
     @InjectMocks
     private PurgeDatabaseService purgeDatabaseService;
 
+    @BeforeEach
+    void before(){
+        when(dotenv.get("DATABASE_RETENTION_PAYMENT_DAY")).thenReturn("7");
+    }
+
     @Test
     void purgeDatabase() {
         // GIVEN