diff --git a/composer.json b/composer.json
index 46ca87e6..6034d4ce 100644
--- a/composer.json
+++ b/composer.json
@@ -52,6 +52,6 @@
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     "psr/cache": "^3.0.0",
     "phpstan/phpstan": "^1.0.1",
-    "phpunit/phpunit": "10.2.7"
+    "phpunit/phpunit": "10.3.1"
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diff --git a/composer.lock b/composer.lock
index 72de1d44..79020ded 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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+    "content-hash": "7bc2761dc1440eab5a410c61da33ee99",
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             "name": "macbre/monolog-utils",
@@ -1408,16 +1408,16 @@
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         {
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-            "version": "10.2.7",
+            "version": "10.3.1",
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                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "a215d9ee8bac1733796e4ddff3306811f14414e5"
+                "reference": "d442ce7c4104d5683c12e67e4dcb5058159e9804"
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-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/a215d9ee8bac1733796e4ddff3306811f14414e5",
-                "reference": "a215d9ee8bac1733796e4ddff3306811f14414e5",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/d442ce7c4104d5683c12e67e4dcb5058159e9804",
+                "reference": "d442ce7c4104d5683c12e67e4dcb5058159e9804",
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@@ -1457,7 +1457,7 @@
             "type": "library",
             "extra": {
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-                    "dev-main": "10.2-dev"
+                    "dev-main": "10.3-dev"
                 }
             },
             "autoload": {
@@ -1489,7 +1489,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.2.7"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.3.1"
             },
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@@ -1505,7 +1505,7 @@
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                 }
             ],
-            "time": "2023-08-02T06:46:08+00:00"
+            "time": "2023-08-04T06:48:08+00:00"
         },
         {
             "name": "psr/cache",