diff --git a/composer.json b/composer.json
index 35399e8..bfb9b70 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
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   },
   "require-dev": {
-    "phpunit/phpunit": "9.5.7",
+    "phpunit/phpunit": "9.5.8",
     "vimeo/psalm": "4.9.1"
   }
 }
diff --git a/composer.lock b/composer.lock
index eda2fa8..69c26c3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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     ],
-    "content-hash": "9ae9b73a648adf7f53649c2c96db1796",
+    "content-hash": "545cb16e3a4c1ad3843e3d25c16ad460",
     "packages": [],
     "packages-dev": [
         {
@@ -1371,16 +1371,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.5.7",
+            "version": "9.5.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "d0dc8b6999c937616df4fb046792004b33fd31c5"
+                "reference": "191768ccd5c85513b4068bdbe99bb6390c7d54fb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/d0dc8b6999c937616df4fb046792004b33fd31c5",
-                "reference": "d0dc8b6999c937616df4fb046792004b33fd31c5",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/191768ccd5c85513b4068bdbe99bb6390c7d54fb",
+                "reference": "191768ccd5c85513b4068bdbe99bb6390c7d54fb",
                 "shasum": ""
             },
             "require": {
@@ -1392,7 +1392,7 @@
                 "ext-xml": "*",
                 "ext-xmlwriter": "*",
                 "myclabs/deep-copy": "^1.10.1",
-                "phar-io/manifest": "^2.0.1",
+                "phar-io/manifest": "^2.0.3",
                 "phar-io/version": "^3.0.2",
                 "php": ">=7.3",
                 "phpspec/prophecy": "^1.12.1",
@@ -1466,7 +1466,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-07-19T06:14:47+00:00"
+            "time": "2021-07-31T15:17:34+00:00"
         },
         {
             "name": "psr/container",