diff --git a/tools/phpunit/composer.json b/tools/phpunit/composer.json
index 090457e60..abf723377 100644
--- a/tools/phpunit/composer.json
+++ b/tools/phpunit/composer.json
@@ -3,7 +3,7 @@
 	"require-dev": {
 		"codedungeon/phpunit-result-printer": "0.26.2",
 		"liuggio/fastest": "1.6.1",
-		"phpunit/phpunit": "8.3.3",
+		"phpunit/phpunit": "8.3.4",
 		"phpunit/phpcov": "6.0.0",
 		"roave/security-advisories": "dev-master",
 		"sebastian/finder-facade": "1.2.2",
diff --git a/tools/phpunit/composer.lock b/tools/phpunit/composer.lock
index 91e5745e6..defe4fb82 100644
--- a/tools/phpunit/composer.lock
+++ b/tools/phpunit/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": "8ae9dad4c2af5ad5e4fe56257714f785",
+    "content-hash": "2385685043e9f7d28ab1d4b6864fe3a1",
     "packages": [],
     "packages-dev": [
         {
@@ -1060,16 +1060,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "8.3.3",
+            "version": "8.3.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "c319d08ebd31e137034c84ad7339054709491485"
+                "reference": "e31cce0cf4499c0ccdbbb211a3280d36ab341e36"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/c319d08ebd31e137034c84ad7339054709491485",
-                "reference": "c319d08ebd31e137034c84ad7339054709491485",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/e31cce0cf4499c0ccdbbb211a3280d36ab341e36",
+                "reference": "e31cce0cf4499c0ccdbbb211a3280d36ab341e36",
                 "shasum": ""
             },
             "require": {
@@ -1139,7 +1139,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2019-08-03T15:41:47+00:00"
+            "time": "2019-08-11T06:56:55+00:00"
         },
         {
             "name": "psr/container",
@@ -1625,16 +1625,16 @@
         },
         {
             "name": "sebastian/exporter",
-            "version": "3.1.0",
+            "version": "3.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937"
+                "reference": "06a9a5947f47b3029d76118eb5c22802e5869687"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/234199f4528de6d12aaa58b612e98f7d36adb937",
-                "reference": "234199f4528de6d12aaa58b612e98f7d36adb937",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/06a9a5947f47b3029d76118eb5c22802e5869687",
+                "reference": "06a9a5947f47b3029d76118eb5c22802e5869687",
                 "shasum": ""
             },
             "require": {
@@ -1661,6 +1661,10 @@
                 "BSD-3-Clause"
             ],
             "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                },
                 {
                     "name": "Jeff Welch",
                     "email": "whatthejeff@gmail.com"
@@ -1669,17 +1673,13 @@
                     "name": "Volker Dusch",
                     "email": "github@wallbash.com"
                 },
-                {
-                    "name": "Bernhard Schussek",
-                    "email": "bschussek@2bepublished.at"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de"
-                },
                 {
                     "name": "Adam Harvey",
                     "email": "aharvey@php.net"
+                },
+                {
+                    "name": "Bernhard Schussek",
+                    "email": "bschussek@gmail.com"
                 }
             ],
             "description": "Provides the functionality to export PHP variables for visualization",
@@ -1688,7 +1688,7 @@
                 "export",
                 "exporter"
             ],
-            "time": "2017-04-03T13:19:02+00:00"
+            "time": "2019-08-11T12:43:14+00:00"
         },
         {
             "name": "sebastian/finder-facade",