diff --git a/composer.lock b/composer.lock
index 412fb3f9a..84e376a1e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -223,16 +223,16 @@
         },
         {
             "name": "opis/closure",
-            "version": "3.5.3",
+            "version": "3.5.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/opis/closure.git",
-                "reference": "cac47092144043d5d676e2e7cf8d0d2f83fc89ca"
+                "reference": "1d0deef692f66dae5d70663caee2867d0971306b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/opis/closure/zipball/cac47092144043d5d676e2e7cf8d0d2f83fc89ca",
-                "reference": "cac47092144043d5d676e2e7cf8d0d2f83fc89ca",
+                "url": "https://api.github.com/repos/opis/closure/zipball/1d0deef692f66dae5d70663caee2867d0971306b",
+                "reference": "1d0deef692f66dae5d70663caee2867d0971306b",
                 "shasum": "",
                 "mirrors": [
                     {
@@ -286,7 +286,7 @@
                 "serialization",
                 "serialize"
             ],
-            "time": "2020-05-25T09:32:45+00:00"
+            "time": "2020-06-07T11:41:29+00:00"
         },
         {
             "name": "psr/cache",
@@ -929,12 +929,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/zoujingli/ThinkLibrary.git",
-                "reference": "c05ab96c1387fcd7e46757ea8b9fa96b354d18e5"
+                "reference": "334cd213e194ffaaa882bbcd5fa5d5e58ac51bab"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/zoujingli/ThinkLibrary/zipball/c05ab96c1387fcd7e46757ea8b9fa96b354d18e5",
-                "reference": "c05ab96c1387fcd7e46757ea8b9fa96b354d18e5",
+                "url": "https://api.github.com/repos/zoujingli/ThinkLibrary/zipball/334cd213e194ffaaa882bbcd5fa5d5e58ac51bab",
+                "reference": "334cd213e194ffaaa882bbcd5fa5d5e58ac51bab",
                 "shasum": "",
                 "mirrors": [
                     {
@@ -978,7 +978,7 @@
             ],
             "description": "ThinkPHP v6.0 Development Library",
             "homepage": "http://framework.thinkadmin.top",
-            "time": "2020-06-05T10:04:22+00:00"
+            "time": "2020-06-07T15:00:59+00:00"
         },
         {
             "name": "zoujingli/wechat-developer",
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
index 624534837..2564db327 100644
--- a/vendor/composer/installed.json
+++ b/vendor/composer/installed.json
@@ -222,17 +222,17 @@
     },
     {
         "name": "opis/closure",
-        "version": "3.5.3",
-        "version_normalized": "3.5.3.0",
+        "version": "3.5.4",
+        "version_normalized": "3.5.4.0",
         "source": {
             "type": "git",
             "url": "https://github.com/opis/closure.git",
-            "reference": "cac47092144043d5d676e2e7cf8d0d2f83fc89ca"
+            "reference": "1d0deef692f66dae5d70663caee2867d0971306b"
         },
         "dist": {
             "type": "zip",
-            "url": "https://api.github.com/repos/opis/closure/zipball/cac47092144043d5d676e2e7cf8d0d2f83fc89ca",
-            "reference": "cac47092144043d5d676e2e7cf8d0d2f83fc89ca",
+            "url": "https://api.github.com/repos/opis/closure/zipball/1d0deef692f66dae5d70663caee2867d0971306b",
+            "reference": "1d0deef692f66dae5d70663caee2867d0971306b",
             "shasum": "",
             "mirrors": [
                 {
@@ -248,7 +248,7 @@
             "jeremeamia/superclosure": "^2.0",
             "phpunit/phpunit": "^4.0 || ^5.0 || ^6.0 || ^7.0"
         },
-        "time": "2020-05-25T09:32:45+00:00",
+        "time": "2020-06-07T11:41:29+00:00",
         "type": "library",
         "extra": {
             "branch-alias": {
@@ -955,12 +955,12 @@
         "source": {
             "type": "git",
             "url": "https://github.com/zoujingli/ThinkLibrary.git",
-            "reference": "c05ab96c1387fcd7e46757ea8b9fa96b354d18e5"
+            "reference": "334cd213e194ffaaa882bbcd5fa5d5e58ac51bab"
         },
         "dist": {
             "type": "zip",
-            "url": "https://api.github.com/repos/zoujingli/ThinkLibrary/zipball/c05ab96c1387fcd7e46757ea8b9fa96b354d18e5",
-            "reference": "c05ab96c1387fcd7e46757ea8b9fa96b354d18e5",
+            "url": "https://api.github.com/repos/zoujingli/ThinkLibrary/zipball/334cd213e194ffaaa882bbcd5fa5d5e58ac51bab",
+            "reference": "334cd213e194ffaaa882bbcd5fa5d5e58ac51bab",
             "shasum": "",
             "mirrors": [
                 {
@@ -976,7 +976,7 @@
             "ext-json": "*",
             "topthink/framework": "^6.0"
         },
-        "time": "2020-06-05T10:04:22+00:00",
+        "time": "2020-06-07T15:00:59+00:00",
         "type": "library",
         "extra": {
             "think": {
diff --git a/vendor/opis/closure/.github/workflows/tests.yml b/vendor/opis/closure/.github/workflows/tests.yml
new file mode 100644
index 000000000..b71e6e4aa
--- /dev/null
+++ b/vendor/opis/closure/.github/workflows/tests.yml
@@ -0,0 +1,43 @@
+name: "Tests"
+on:
+  push:
+    paths-ignore:
+      - '**.md'
+  pull_request:
+    paths-ignore:
+      - '**.md'
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: true
+      matrix:
+        php: [5.4, 5.5, 5.6, 7.0, 7.1, 7.2, 7.3, 7.4]
+        stability: [prefer-stable]
+
+    name: PHP ${{ matrix.php }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Cache dependencies
+        uses: actions/cache@v1
+        with:
+          path: ~/.composer/cache/files
+          key: dependencies-php-${{ matrix.php }}-composer-${{ hashFiles('composer.json') }}
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          coverage: none
+
+      - name: Update composer
+        run: composer self-update
+
+      - name: Install dependencies
+        run: composer update --${{ matrix.stability }} --prefer-dist --no-interaction --no-progress
+
+      - name: Execute tests
+        run: vendor/bin/phpunit --verbose
\ No newline at end of file
diff --git a/vendor/opis/closure/CHANGELOG.md b/vendor/opis/closure/CHANGELOG.md
index 75ec26462..5eb1d6218 100644
--- a/vendor/opis/closure/CHANGELOG.md
+++ b/vendor/opis/closure/CHANGELOG.md
@@ -1,10 +1,16 @@
 CHANGELOG
 ---------
+
+### v3.5.4, 2020.06.07
+
+- Fixed a false-positive when using `Opis\Closure\ReflectionClosure::isScopeRequired` method
+- Fixed a bug related to `T_STRING_VARNAME`
+
 ### v3.5.3, 2020.05.25
 
 - Improved parser
 - The class scope optimisation is no longer used. We always bind now to the closure's original class scope.
-If the class scope was `null`, then the optimisation didn't work as expected and kept the `SerializableClosure` scope.
+When the class scope was `null`, the optimisation failed to work as expected and kept the wrong `SerializableClosure` scope.
 
 ### v3.5.2, 2020.05.21
 
diff --git a/vendor/opis/closure/README.md b/vendor/opis/closure/README.md
index b98d68dbd..193380065 100644
--- a/vendor/opis/closure/README.md
+++ b/vendor/opis/closure/README.md
@@ -1,6 +1,6 @@
 Opis Closure
 ====================
-[![Build Status](https://travis-ci.org/opis/closure.png)](https://travis-ci.org/opis/closure)
+[![Tests](https://github.com/opis/closure/workflows/Tests/badge.svg)](https://github.com/opis/closure/actions)
 [![Latest Stable Version](https://poser.pugx.org/opis/closure/v/stable.png)](https://packagist.org/packages/opis/closure)
 [![Latest Unstable Version](https://poser.pugx.org/opis/closure/v/unstable.png)](https://packagist.org/packages/opis/closure)
 [![License](https://poser.pugx.org/opis/closure/license.png)](https://packagist.org/packages/opis/closure)
@@ -35,15 +35,15 @@ proper serialization
 - Automatically detects when the scope and/or the bound object of a closure needs to be serialized
 in order for the closure to work after deserialization
 
-### Documentation
+## Documentation
 
 The full documentation for this library can be found [here][documentation].
 
-### License
+## License
 
 **Opis Closure** is licensed under the [MIT License (MIT)][license].
 
-### Requirements
+## Requirements
 
 * PHP ^5.4 || ^7.0
 
@@ -78,21 +78,15 @@ of **Opis Closure**. Otherwise, assuming you are not using one of the removed/re
 
 ### Arbitrary object serialization
 
-This feature was primarily introduced in order to support serializing an object bound 
-to a closure and available via `$this`. The implementation is far from being perfect 
-and it's really hard to make it work flawless. I will try to improve this, but I can 
-not guarantee anything. So my advice regarding the `Opis\Closure\serialize|unserialize` 
-functions is to use them with caution.
+We've added this feature in order to be able to support the serialization of a closure's bound object. 
+The implementation is far from being perfect, and it's really hard to make it work flawless. 
+We will try to improve this, but we can't guarantee anything. 
+So our advice regarding the `Opis\Closure\serialize|unserialize` functions is to use them with caution.
 
-### SuperClosure support
-
-**Opis Closure** is shipped with an analyzer(`Opis\Closure\Analyzer`) which 
-aims to provide *Opis Closure*'s parsing precision and speed to [SuperClosure].
 
 [documentation]: https://www.opis.io/closure "Opis Closure"
 [license]: http://opensource.org/licenses/MIT "MIT License"
 [Packagist]: https://packagist.org/packages/opis/closure "Packagist"
 [Composer]: https://getcomposer.org "Composer"
-[SuperClosure]: https://github.com/jeremeamia/super_closure "SuperClosure"
 [SemVer]: http://semver.org/ "Semantic versioning"
 [CHANGELOG]: https://github.com/opis/closure/blob/master/CHANGELOG.md "Changelog"
\ No newline at end of file
diff --git a/vendor/opis/closure/src/Analyzer.php b/vendor/opis/closure/src/Analyzer.php
index cbcc895ea..a30be77a9 100644
--- a/vendor/opis/closure/src/Analyzer.php
+++ b/vendor/opis/closure/src/Analyzer.php
@@ -10,6 +10,9 @@ namespace Opis\Closure;
 use Closure;
 use SuperClosure\Analyzer\ClosureAnalyzer;
 
+/**
+ * @deprecated We'll remove this class
+ */
 class Analyzer extends ClosureAnalyzer
 {
     /**
diff --git a/vendor/opis/closure/src/ReflectionClosure.php b/vendor/opis/closure/src/ReflectionClosure.php
index e2b42b4fd..c5aff5dc9 100644
--- a/vendor/opis/closure/src/ReflectionClosure.php
+++ b/vendor/opis/closure/src/ReflectionClosure.php
@@ -124,9 +124,9 @@ class ReflectionClosure extends ReflectionFunction
 
         $tokens = $this->getTokens();
         $state = $lastState = 'start';
-        $inside_anonymous = false;
+        $inside_structure = false;
         $isShortClosure = false;
-        $anonymous_mark = 0;
+        $inside_structure_mark = 0;
         $open = 0;
         $code = '';
         $id_start = $id_start_ci = $id_name = $context = '';
@@ -278,7 +278,6 @@ class ReflectionClosure extends ReflectionFunction
                     switch ($token[0]){
                         case T_CURLY_OPEN:
                         case T_DOLLAR_OPEN_CURLY_BRACES:
-                        case T_STRING_VARNAME:
                         case '{':
                             $code .= '{';
                             $open++;
@@ -287,8 +286,8 @@ class ReflectionClosure extends ReflectionFunction
                             $code .= '}';
                             if(--$open === 0 && !$isShortClosure){
                                 break 3;
-                            } elseif ($inside_anonymous) {
-                                $inside_anonymous = !($open === $anonymous_mark);
+                            } elseif ($inside_structure) {
+                                $inside_structure = !($open === $inside_structure_mark);
                             }
                             break;
                         case '(':
@@ -328,13 +327,13 @@ class ReflectionClosure extends ReflectionFunction
                             $code .= $_namespace;
                             break;
                         case T_CLASS_C:
-                            $code .= $inside_anonymous ? $token[1] : $_class;
+                            $code .= $inside_structure ? $token[1] : $_class;
                             break;
                         case T_FUNC_C:
-                            $code .= $inside_anonymous ? $token[1] : $_function;
+                            $code .= $inside_structure ? $token[1] : $_function;
                             break;
                         case T_METHOD_C:
-                            $code .= $inside_anonymous ? $token[1] : $_method;
+                            $code .= $inside_structure ? $token[1] : $_method;
                             break;
                         case T_COMMENT:
                             if (substr($token[1], 0, 8) === '#trackme') {
@@ -350,17 +349,12 @@ class ReflectionClosure extends ReflectionFunction
                             }
                             break;
                         case T_VARIABLE:
-                            if($token[1] == '$this' && !$inside_anonymous){
+                            if($token[1] == '$this' && !$inside_structure){
                                 $isUsingThisObject = true;
                             }
                             $code .= $token[1];
                             break;
                         case T_STATIC:
-                            if (!$inside_anonymous) {
-                                $isUsingScope = true;
-                            }
-                            $code .= $token[1];
-                            break;
                         case T_NS_SEPARATOR:
                         case T_STRING:
                             $id_start = $token[1];
@@ -398,6 +392,10 @@ class ReflectionClosure extends ReflectionFunction
                         case T_FUNCTION:
                             $code .= $token[1];
                             $state = 'closure_args';
+                            if (!$inside_structure) {
+                                $inside_structure = true;
+                                $inside_structure_mark = $open;
+                            }
                             break;
                         case T_TRAIT_C:
                             if ($_trait === null) {
@@ -501,7 +499,11 @@ class ReflectionClosure extends ReflectionFunction
                                 $open++;
                             }
                             if($context === 'new' || false !== strpos($id_name, '\\')){
-                                if($id_start !== '\\' && !in_array($id_start_ci, $class_keywords)){
+                                if($id_start_ci === 'self' || $id_start_ci === 'static') {
+                                    if (!$inside_structure) {
+                                        $isUsingScope = true;
+                                    }
+                                } elseif ($id_start !== '\\' && !in_array($id_start_ci, $class_keywords)) {
                                     if ($classes === null) {
                                         $classes = $this->getClasses();
                                     }
@@ -528,10 +530,14 @@ class ReflectionClosure extends ReflectionFunction
                         case T_VARIABLE:
                         case T_DOUBLE_COLON:
                             if($id_start !== '\\') {
-                                if($id_start_ci === 'self' || $id_start_ci === 'static' || $id_start_ci === 'parent'){
-                                    if (!$inside_anonymous) {
+                                if($id_start_ci === 'self' || $id_start_ci === 'parent'){
+                                    if (!$inside_structure) {
                                         $isUsingScope = true;
                                     }
+                                } elseif ($id_start_ci === 'static') {
+                                    if (!$inside_structure) {
+                                        $isUsingScope = $token[0] === T_DOUBLE_COLON;
+                                    }
                                 } elseif (!($php7 && in_array($id_start_ci, $php7_types))){
                                     if ($classes === null) {
                                         $classes = $this->getClasses();
@@ -544,6 +550,7 @@ class ReflectionClosure extends ReflectionFunction
                                     }
                                 }
                             }
+
                             $code .= $id_start . $id_name . $token[1];
                             $state = $token[0] === T_DOUBLE_COLON ? 'ignore_next' : $lastState;
                             break;
@@ -562,7 +569,7 @@ class ReflectionClosure extends ReflectionFunction
                                     $context === 'root'
                                 ){
                                     if($id_start_ci === 'self' || $id_start_ci === 'static' || $id_start_ci === 'parent'){
-                                        if (!$inside_anonymous) {
+                                        if (!$inside_structure) {
                                             $isUsingScope = true;
                                         }
                                     } elseif (!($php7 && in_array($id_start_ci, $php7_types))){
@@ -596,9 +603,9 @@ class ReflectionClosure extends ReflectionFunction
                         break;
                         case '{':
                             $state = 'closure';
-                            if (!$inside_anonymous) {
-                                $inside_anonymous = true;
-                                $anonymous_mark = $open;
+                            if (!$inside_structure) {
+                                $inside_structure = true;
+                                $inside_structure_mark = $open;
                             }
                             $i--;
                             break;
@@ -982,7 +989,6 @@ class ReflectionClosure extends ReflectionFunction
                         case '{':
                         case T_CURLY_OPEN:
                         case T_DOLLAR_OPEN_CURLY_BRACES:
-                        case T_STRING_VARNAME:
                             $open++;
                             break;
                         case '}':
diff --git a/vendor/services.php b/vendor/services.php
index 49d356114..8ff89c382 100644
--- a/vendor/services.php
+++ b/vendor/services.php
@@ -1,5 +1,5 @@
 <?php 
-// This file is automatically generated at:2020-06-07 17:28:28
+// This file is automatically generated at:2020-06-07 23:10:04
 declare (strict_types = 1);
 return array (
   0 => 'think\\app\\Service',