diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7e4837157..63c859cad 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         image: [ubuntu-20.04]
-        php: [7.4.18]
+        php: [7.4.19]
 
     steps:
       - uses: actions/checkout@v2 #needed for build.sh
@@ -37,7 +37,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [7.4.18]
+        php: [7.4.19]
 
     steps:
       - uses: actions/checkout@v2
@@ -55,7 +55,7 @@ jobs:
 
       - name: Install cached PHP's dependencies
         if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: chmod +x ./bin/php7/install-dependencies.sh && ./bin/php7/install-dependencies.sh
+        run: ./tests/gh-actions/install-dependencies.sh
 
       - name: Prefix PHP to PATH
         run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
@@ -87,7 +87,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [7.4.18]
+        php: [7.4.19]
 
     steps:
       - uses: actions/checkout@v2
@@ -107,7 +107,7 @@ jobs:
 
       - name: Install cached PHP's dependencies
         if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: chmod +x ./bin/php7/install-dependencies.sh && ./bin/php7/install-dependencies.sh
+        run: ./tests/gh-actions/install-dependencies.sh
 
       - name: Prefix PHP to PATH
         run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
@@ -139,7 +139,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [7.4.18]
+        php: [7.4.19]
 
     steps:
       - uses: actions/checkout@v2
@@ -159,7 +159,7 @@ jobs:
 
       - name: Install cached PHP's dependencies
         if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: chmod +x ./bin/php7/install-dependencies.sh && ./bin/php7/install-dependencies.sh
+        run: ./tests/gh-actions/install-dependencies.sh
 
       - name: Prefix PHP to PATH
         run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
@@ -191,7 +191,7 @@ jobs:
       fail-fast: false
       matrix:
         image: [ubuntu-20.04]
-        php: [7.4.18]
+        php: [7.4.19]
 
     steps:
       - uses: actions/checkout@v2
@@ -211,7 +211,7 @@ jobs:
 
       - name: Install cached PHP's dependencies
         if: steps.php-build-cache.outputs.cache-hit == 'true'
-        run: chmod +x ./bin/php7/install-dependencies.sh && ./bin/php7/install-dependencies.sh
+        run: ./tests/gh-actions/install-dependencies.sh
 
       - name: Prefix PHP to PATH
         run: echo "$(pwd)/bin/php7/bin" >> $GITHUB_PATH
diff --git a/composer.json b/composer.json
index 6717f395e..0b804c8a5 100644
--- a/composer.json
+++ b/composer.json
@@ -51,7 +51,7 @@
       "respect/validation": "^2.0"
    },
    "require-dev": {
-      "phpstan/phpstan": "0.12.85",
+      "phpstan/phpstan": "0.12.86",
       "phpstan/phpstan-phpunit": "^0.12.6",
       "phpstan/phpstan-strict-rules": "^0.12.2",
       "phpunit/phpunit": "^9.2"
diff --git a/composer.lock b/composer.lock
index f1c2e26cb..b4471cb4f 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "91de5b8e3d1e1f64970c03e059a27f8a",
+    "content-hash": "04e955ce26ffda03098344659abcf0e0",
     "packages": [
         {
             "name": "adhocore/json-comment",
@@ -621,12 +621,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/pmmp/Math.git",
-                "reference": "5c5ddc62725daad773d8c4eda180e6327d45b692"
+                "reference": "4595b5ee90627e817317839519a7d482c809effb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/pmmp/Math/zipball/5c5ddc62725daad773d8c4eda180e6327d45b692",
-                "reference": "5c5ddc62725daad773d8c4eda180e6327d45b692",
+                "url": "https://api.github.com/repos/pmmp/Math/zipball/4595b5ee90627e817317839519a7d482c809effb",
+                "reference": "4595b5ee90627e817317839519a7d482c809effb",
                 "shasum": ""
             },
             "require": {
@@ -636,7 +636,7 @@
             "require-dev": {
                 "irstea/phpunit-shim": "^8.5 || ^9.5",
                 "phpstan/extension-installer": "^1.0",
-                "phpstan/phpstan": "0.12.67",
+                "phpstan/phpstan": "0.12.80",
                 "phpstan/phpstan-strict-rules": "^0.12.4"
             },
             "type": "library",
@@ -654,7 +654,7 @@
                 "issues": "https://github.com/pmmp/Math/issues",
                 "source": "https://github.com/pmmp/Math/tree/master"
             },
-            "time": "2021-01-15T14:25:59+00:00"
+            "time": "2021-05-10T10:44:46+00:00"
         },
         {
             "name": "pocketmine/nbt",
@@ -1835,16 +1835,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.85",
+            "version": "0.12.86",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "20e6333c0067875ad7697cd8acdf245c6ef69d03"
+                "reference": "a84fdc53ecca7643dbc89ef8880d8b393a6c155a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/20e6333c0067875ad7697cd8acdf245c6ef69d03",
-                "reference": "20e6333c0067875ad7697cd8acdf245c6ef69d03",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/a84fdc53ecca7643dbc89ef8880d8b393a6c155a",
+                "reference": "a84fdc53ecca7643dbc89ef8880d8b393a6c155a",
                 "shasum": ""
             },
             "require": {
@@ -1875,7 +1875,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.85"
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.86"
             },
             "funding": [
                 {
@@ -1891,25 +1891,25 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-04-27T14:13:16+00:00"
+            "time": "2021-05-08T11:29:01+00:00"
         },
         {
             "name": "phpstan/phpstan-phpunit",
-            "version": "0.12.18",
+            "version": "0.12.19",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan-phpunit.git",
-                "reference": "ab44aec7cfb5cb267b8bc30a8caea86dd50d1f72"
+                "reference": "52f7072ddc5f81492f9d2de65a24813a48c90b18"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/ab44aec7cfb5cb267b8bc30a8caea86dd50d1f72",
-                "reference": "ab44aec7cfb5cb267b8bc30a8caea86dd50d1f72",
+                "url": "https://api.github.com/repos/phpstan/phpstan-phpunit/zipball/52f7072ddc5f81492f9d2de65a24813a48c90b18",
+                "reference": "52f7072ddc5f81492f9d2de65a24813a48c90b18",
                 "shasum": ""
             },
             "require": {
                 "php": "^7.1 || ^8.0",
-                "phpstan/phpstan": "^0.12.60"
+                "phpstan/phpstan": "^0.12.86"
             },
             "conflict": {
                 "phpunit/phpunit": "<7.0"
@@ -1944,9 +1944,9 @@
             "description": "PHPUnit extensions and rules for PHPStan",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan-phpunit/issues",
-                "source": "https://github.com/phpstan/phpstan-phpunit/tree/0.12.18"
+                "source": "https://github.com/phpstan/phpstan-phpunit/tree/0.12.19"
             },
-            "time": "2021-03-06T11:51:27+00:00"
+            "time": "2021-04-30T11:10:37+00:00"
         },
         {
             "name": "phpstan/phpstan-strict-rules",
diff --git a/tests/gh-actions/build.sh b/tests/gh-actions/build.sh
index da7d20aa8..fc7610086 100755
--- a/tests/gh-actions/build.sh
+++ b/tests/gh-actions/build.sh
@@ -70,4 +70,3 @@ echo "extension=crypto.so" >> "$INSTALL_DIR/etc/conf.d/crypto.ini"
 cd ..
 
 rm "$INSTALL_DIR/etc/conf.d/xdebug.ini" || true
-cp install-dependencies.sh "$INSTALL_DIR"
diff --git a/tests/gh-actions/install-dependencies.sh b/tests/gh-actions/install-dependencies.sh
new file mode 100755
index 000000000..368e27e3a
--- /dev/null
+++ b/tests/gh-actions/install-dependencies.sh
@@ -0,0 +1,3 @@
+#!/bin/bash
+sudo apt update && sudo apt install -y \
+	libzip5