diff --git a/composer.lock b/composer.lock
index e9211d8..478b586 100644
--- a/composer.lock
+++ b/composer.lock
@@ -866,12 +866,12 @@
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+                "reference": "b4cffabdec9db7fcc40f73d37f5152bb5027f80f"
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-                "reference": "0ec37f756a3c435491317b4d40be33fc4bfef467",
+                "url": "https://api.github.com/repos/HarmonyIO/Cache/zipball/b4cffabdec9db7fcc40f73d37f5152bb5027f80f",
+                "reference": "b4cffabdec9db7fcc40f73d37f5152bb5027f80f",
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@@ -904,7 +904,7 @@
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-            "time": "2018-11-19T16:39:52+00:00"
+            "time": "2018-11-19T19:31:50+00:00"
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         {
             "name": "kelunik/certificate",
@@ -1826,16 +1826,16 @@
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+            "version": "7.4.5",
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-                "reference": "b1be2c8530c4c29c3519a052c9fb6cee55053bbd"
+                "reference": "61d34e8dd6eb3555900f0f2a2fa9e7e570730102"
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-                "reference": "b1be2c8530c4c29c3519a052c9fb6cee55053bbd",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/61d34e8dd6eb3555900f0f2a2fa9e7e570730102",
+                "reference": "61d34e8dd6eb3555900f0f2a2fa9e7e570730102",
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@@ -1856,7 +1856,7 @@
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                 "sebastian/comparator": "^3.0",
                 "sebastian/diff": "^3.0",
-                "sebastian/environment": "^3.1 || ^4.0",
+                "sebastian/environment": "^4.0",
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@@ -1906,7 +1906,7 @@
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-            "time": "2018-11-14T16:52:02+00:00"
+            "time": "2018-12-03T05:01:24+00:00"
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         {
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@@ -2075,28 +2075,28 @@
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+            "version": "4.0.1",
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-                "reference": "cd0871b3975fb7fc44d11314fd1ee20925fce4f5"
+                "reference": "febd209a219cea7b56ad799b30ebbea34b71eb8f"
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-                "reference": "cd0871b3975fb7fc44d11314fd1ee20925fce4f5",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/febd209a219cea7b56ad799b30ebbea34b71eb8f",
+                "reference": "febd209a219cea7b56ad799b30ebbea34b71eb8f",
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             "require": {
-                "php": "^7.0"
+                "php": "^7.1"
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             "require-dev": {
-                "phpunit/phpunit": "^6.1"
+                "phpunit/phpunit": "^7.4"
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+                    "dev-master": "4.0-dev"
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@@ -2121,7 +2121,7 @@
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-            "time": "2017-07-01T08:51:00+00:00"
+            "time": "2018-11-25T09:31:21+00:00"
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         {
             "name": "sebastian/exporter",