diff --git a/README.md b/README.md
index dc5b659..358955b 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ It provides DB2 Connection by extending the Illuminate Database component of the
 Add laravel-db2 to your composer.json file:
 ```
 "require": {
-    "cooperl/laravel-db2": "^6.0"
+    "cooperl/laravel-db2": "^7.0"
 }
 ```
 Use [composer](https://getcomposer.org) to install this package.
@@ -114,13 +114,13 @@ Simply add this code at the end of your ``app/config/database.php`` file:
         ],
         'options' => [
             PDO::ATTR_CASE => PDO::CASE_LOWER,
-            PDO::ATTR_PERSISTENT => false,
-            PDO::I5_ATTR_DBC_SYS_NAMING => false,
-            PDO::I5_ATTR_COMMIT => PDO::I5_TXN_NO_COMMIT,
-            PDO::I5_ATTR_JOB_SORT => false,
-            PDO::I5_ATTR_DBC_LIBL => '',
-            PDO::I5_ATTR_DBC_CURLIB => '',
+            PDO::ATTR_PERSISTENT => false
         ]
+        + (defined('PDO::I5_ATTR_DBC_SYS_NAMING') ? [PDO::I5_ATTI5_ATTR_DBC_SYS_NAMINGR_COMMIT => false] : [])
+        + (defined('PDO::I5_ATTR_COMMIT') ? [PDO::I5_ATTR_COMMIT => PDO::I5_TXN_NO_COMMIT] : [])
+        + (defined('PDO::I5_ATTR_JOB_SORT') ? [PDO::I5_ATTR_JOB_SORT => false] : [])
+        + (defined('PDO::I5_ATTR_DBC_LIBL') ? [PDO::I5_ATTR_DBC_LIBL => ''] : [])
+        + (defined('PDO::I5_ATTR_DBC_CURLIB') ? [PDO::I5_ATTR_DBC_CURLIB => ''] : [])
     ],
 
 ```
diff --git a/composer.json b/composer.json
index 67e39e8..d4e0602 100644
--- a/composer.json
+++ b/composer.json
@@ -16,8 +16,8 @@
     }
     ],
     "require": {
-        "php": "^7.2",
-        "illuminate/database": "^6.0"
+        "php": "^7.2.5",
+        "illuminate/database": "^7.0"
     },
     "require-dev": {
     },
diff --git a/src/config/db2.php b/src/config/db2.php
index f78cb05..95ff378 100644
--- a/src/config/db2.php
+++ b/src/config/db2.php
@@ -142,13 +142,13 @@ return [
             ],
             'options' => [
                 PDO::ATTR_CASE => PDO::CASE_LOWER,
-                PDO::ATTR_PERSISTENT => false,
-                PDO::I5_ATTR_DBC_SYS_NAMING => false,
-                PDO::I5_ATTR_COMMIT => PDO::I5_TXN_NO_COMMIT,
-                PDO::I5_ATTR_JOB_SORT => false,
-                PDO::I5_ATTR_DBC_LIBL => '',
-                PDO::I5_ATTR_DBC_CURLIB => '',
-            ],
+                PDO::ATTR_PERSISTENT => false
+            ]
+            + (defined('PDO::I5_ATTR_DBC_SYS_NAMING') ? [PDO::I5_ATTI5_ATTR_DBC_SYS_NAMINGR_COMMIT => false] : [])
+            + (defined('PDO::I5_ATTR_COMMIT') ? [PDO::I5_ATTR_COMMIT => PDO::I5_TXN_NO_COMMIT] : [])
+            + (defined('PDO::I5_ATTR_JOB_SORT') ? [PDO::I5_ATTR_JOB_SORT => false] : [])
+            + (defined('PDO::I5_ATTR_DBC_LIBL') ? [PDO::I5_ATTR_DBC_LIBL => ''] : [])
+            + (defined('PDO::I5_ATTR_DBC_CURLIB') ? [PDO::I5_ATTR_DBC_CURLIB => ''] : [])
         ],
 
     ],