diff --git a/Entity/LdapUser.php b/Entity/LdapUser.php
index b8606e7..660acab 100644
--- a/Entity/LdapUser.php
+++ b/Entity/LdapUser.php
@@ -151,7 +151,7 @@ public function eraseCredentials() {
     }
 
     public function equals(UserInterface $user) {
-        if(!$user instanceof People) {
+        if(!$user instanceof LdapUser) {
             return false;
         }
 
diff --git a/README.md b/README.md
index 184fe4d..c2fe18a 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
-Symfony 2/3/4 User provider from LDAP
+Symfony 2/3/4/5 User provider from LDAP
 
 (author : Universite Lille)
 
 
-Allow use LDAP like user provider and security in application written in Symfony2/3/4
+Allow use LDAP like user provider and security in application written in Symfony2/3/4/5
 
 Installation of the Bundle.
 ---
@@ -37,7 +37,7 @@ class AppKernel extends Kernel
 }
 ```
 
-For Symfony 4 :
+For Symfony 4 and 5 :
 Verify if the lines are present in config/bundles.php file (if not present, just add the lines) :
 ```
 # config/bundles.php
@@ -98,10 +98,10 @@ security:
                 id: ldap_user_provider
 ```
 
-For Symfony 4 :
-in the configuration file .env.dist and .env, add this :
+For Symfony 4 and 5 :
+in the configuration file .env.local and .env, add this :
 ```
-# .env.dist 
+# .env.local 
 # .env
 ...
 ###> l3/ldap-user-bundle ###
@@ -112,7 +112,7 @@ LDAP_PASSWORD=password
 ###< l3/ldap-user-bundle ###
 ...
 ```
-and configure the values in the file .env
+and configure the values in the file .env.local
 
 next add this lines in the config/services.yaml file (under parameters) :
 ```
diff --git a/Services/LdapUserProvider.php b/Services/LdapUserProvider.php
index f4bec97..f2e8835 100644
--- a/Services/LdapUserProvider.php
+++ b/Services/LdapUserProvider.php
@@ -53,6 +53,12 @@ public function refreshUser(UserInterface $user) {
     }
 
     public function supportsClass($class) {
-        return $class === 'L3\Bundle\UserLdapBundle\Entity\LdapUser';
+        $version_php = phpversion();
+        $version_php_float = floatval($version_php);
+        if ($version_php_float >= 5.5) {
+            return LdapUser::class === $class;
+        } else {
+            return $class === 'L3\Bundle\UserLdapBundle\Entity\LdapUser';
+        }
     }
-} 
\ No newline at end of file
+}