diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6cc6385..ffbc920 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 1.0.2
+
+* Improve the README.md
+* Fix how we reach the Entity Manager from UserRepository 
+
 ## 1.0.1
 
 * Add missing return type to UserExtension.php
diff --git a/README.md b/README.md
index 749db82..5793aed 100644
--- a/README.md
+++ b/README.md
@@ -70,6 +70,16 @@ security:
     [...]
 ```
 
+### doctrine.yaml
+
+```yaml
+doctrine:
+    orm:
+        resolve_target_entities:
+            Symfony\Component\Security\Core\User\UserInterface: <your-fqcdn-for-your-user-entity-class>
+    [...]
+```
+
 ## Event subscriber
 
 The `Schvoy\UserBundle\EventSubscriber\PasswordHashingDoctrineEventSubscriber` automatically hashes the plain password, during a new user entity creation or an update (if the password changed).
@@ -88,4 +98,4 @@ And after that you can re-enable it:
 
 ## Configuration reference
 
-Extra configuration is not needed for this bundle.
\ No newline at end of file
+Extra configuration is not allowed yet for this bundle.
\ No newline at end of file
diff --git a/src/Repository/UserRepository.php b/src/Repository/UserRepository.php
index ee3a360..e8e3b50 100644
--- a/src/Repository/UserRepository.php
+++ b/src/Repository/UserRepository.php
@@ -41,7 +41,7 @@ public function upgradePassword(PasswordAuthenticatedUserInterface $user, string
 
         $user->setPassword($newHashedPassword);
 
-        $this->_em->persist($user);
-        $this->_em->flush();
+        $this->getEntityManager()->persist($user);
+        $this->getEntityManager()->flush();
     }
 }