diff --git a/workflow/engine/bin/tasks/cliUpgrade.php b/workflow/engine/bin/tasks/cliUpgrade.php
index bfc449763..fee6d98aa 100644
--- a/workflow/engine/bin/tasks/cliUpgrade.php
+++ b/workflow/engine/bin/tasks/cliUpgrade.php
@@ -157,6 +157,11 @@ function run_upgrade($command, $args)
         }
     }
 
+    //Verify the information of the singleton ServConf by changing the name of the class if is required.
+    CLI::logging("\nCheck/Fix serialized instance in serverConf.singleton file\n\n");
+    $serverConf = ServerConf::getSingleton();
+    $serverConf->updateClassNameInFile();
+
     // SAVE Upgrades/Patches
     $arrayPatch = glob(PATH_TRUNK . 'patch-*');
 
diff --git a/workflow/engine/classes/ServerConf.php b/workflow/engine/classes/ServerConf.php
index a5cb68e6b..6e5eb59a0 100644
--- a/workflow/engine/classes/ServerConf.php
+++ b/workflow/engine/classes/ServerConf.php
@@ -484,4 +484,17 @@ class ServerConf
         $lang = substr($lang, 0, 2);
         return in_array($lang, $this->rtlLang);
     }
+
+    /**
+     * Change class name from "serverConf" to "ServerConf" for previous versions to 3.2.2
+     */
+    public function updateClassNameInFile()
+    {
+        if (file_exists(self::$instance->filePath) && filesize(self::$instance->filePath) > 0) {
+            $file = file_get_contents(self::$instance->filePath);
+            $file = str_replace('serverConf', self::class, $file);
+            self::$instance->unSerializeInstance($file);
+            $this->saveSingleton();
+        }
+    }
 }