diff --git a/composer.json b/composer.json
index 1b4cee85..26f1b88b 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
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-    "phpunit/phpunit": "~9.5.17",
+    "phpunit/phpunit": "~9.5.18",
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     "vimeo/psalm": "^4.22"
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diff --git a/composer.lock b/composer.lock
index c884b3b1..dca71f00 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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-    "content-hash": "d6d3433ab88a6ba2bf4af9dd3b0101bd",
+    "content-hash": "ef21be43bf58029097031d52270805a7",
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             "name": "ergebnis/json-pointer",
@@ -2886,16 +2886,16 @@
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         {
             "name": "phpunit/phpunit",
-            "version": "9.5.17",
+            "version": "9.5.18",
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                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "5c5abcfaa2cbd44b2203995d7a339ef910fe0c8f"
+                "reference": "1b5856028273bfd855e60a887278857d872ec67a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/5c5abcfaa2cbd44b2203995d7a339ef910fe0c8f",
-                "reference": "5c5abcfaa2cbd44b2203995d7a339ef910fe0c8f",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/1b5856028273bfd855e60a887278857d872ec67a",
+                "reference": "1b5856028273bfd855e60a887278857d872ec67a",
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@@ -2973,7 +2973,7 @@
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             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.17"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.18"
             },
             "funding": [
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@@ -2985,7 +2985,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-03-05T16:54:31+00:00"
+            "time": "2022-03-08T06:52:28+00:00"
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         {
             "name": "psalm/plugin-phpunit",