diff --git a/composer.lock b/composer.lock
index 2623d98..8cf8a30 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,24 +1,23 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "hash": "2af13897f4ec512b49d92cdfdd5d404a",
     "content-hash": "9ce6750805a230f51c8f8a44855098ac",
     "packages": [
         {
             "name": "paypal/merchant-sdk-php",
-            "version": "v3.9.1",
+            "version": "v3.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/paypal/merchant-sdk-php.git",
-                "reference": "b2dd6628177904d9fe118da13df373e59be61b31"
+                "reference": "f21fe42ad787f98ea5d7186b19e8bec97f1852ed"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/paypal/merchant-sdk-php/zipball/b2dd6628177904d9fe118da13df373e59be61b31",
-                "reference": "b2dd6628177904d9fe118da13df373e59be61b31",
+                "url": "https://api.github.com/repos/paypal/merchant-sdk-php/zipball/f21fe42ad787f98ea5d7186b19e8bec97f1852ed",
+                "reference": "f21fe42ad787f98ea5d7186b19e8bec97f1852ed",
                 "shasum": ""
             },
             "require": {
@@ -30,15 +29,15 @@
             "autoload": {
                 "psr-0": {
                     "PayPal\\Service": "lib/",
-                    "PayPal\\CoreComponentTypes": "lib/",
+                    "PayPal\\PayPalAPI": "lib/",
                     "PayPal\\EBLBaseComponents": "lib/",
                     "PayPal\\EnhancedDataTypes": "lib/",
-                    "PayPal\\PayPalAPI": "lib/"
+                    "PayPal\\CoreComponentTypes": "lib/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "Apache2"
+                "Apache-2.0"
             ],
             "authors": [
                 {
@@ -53,20 +52,25 @@
                 "php",
                 "sdk"
             ],
-            "time": "2015-12-09 17:55:30"
+            "support": {
+                "issues": "https://github.com/paypal/merchant-sdk-php/issues",
+                "source": "https://github.com/paypal/merchant-sdk-php/tree/master"
+            },
+            "abandoned": true,
+            "time": "2017-10-10T19:03:05+00:00"
         },
         {
             "name": "paypal/sdk-core-php",
-            "version": "v3.2.3",
+            "version": "3.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/paypal/sdk-core-php.git",
-                "reference": "493aae6bfecb2b218aa81d1a87af4312c1df4bff"
+                "reference": "d2174f69f9811a8f2e79af7498fdf89586457d76"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/paypal/sdk-core-php/zipball/493aae6bfecb2b218aa81d1a87af4312c1df4bff",
-                "reference": "493aae6bfecb2b218aa81d1a87af4312c1df4bff",
+                "url": "https://api.github.com/repos/paypal/sdk-core-php/zipball/d2174f69f9811a8f2e79af7498fdf89586457d76",
+                "reference": "d2174f69f9811a8f2e79af7498fdf89586457d76",
                 "shasum": ""
             },
             "require": {
@@ -84,7 +88,7 @@
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
-                "Apache2"
+                "Apache-2.0"
             ],
             "authors": [
                 {
@@ -99,7 +103,12 @@
                 "php",
                 "sdk"
             ],
-            "time": "2015-12-09 17:23:32"
+            "support": {
+                "issues": "https://github.com/paypal/sdk-core-php/issues",
+                "source": "https://github.com/paypal/sdk-core-php/tree/master"
+            },
+            "abandoned": true,
+            "time": "2017-11-13T18:53:13+00:00"
         },
         {
             "name": "slim/slim",
@@ -145,7 +154,7 @@
                 "rest",
                 "router"
             ],
-            "time": "2015-03-08 18:41:17"
+            "time": "2015-03-08T18:41:17+00:00"
         }
     ],
     "packages-dev": [],
@@ -155,5 +164,6 @@
     "prefer-stable": false,
     "prefer-lowest": false,
     "platform": [],
-    "platform-dev": []
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
 }