diff --git a/composer.json b/composer.json
index 264aa548..9ba2cd59 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
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         "mockery/mockery": "1.6.7",
         "nunomaduro/collision": "7.10.0",
-        "phpunit/phpunit": "10.5.3",
+        "phpunit/phpunit": "10.5.5",
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diff --git a/composer.lock b/composer.lock
index 0b1b88f8..e096b0f2 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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-    "content-hash": "b82d3317dd46f931e84618b9519462e6",
+    "content-hash": "ab0a2df0d8f8a03881442347c858e6b9",
     "packages": [
         {
             "name": "brick/math",
@@ -6781,16 +6781,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.5.3",
+            "version": "10.5.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "6fce887c71076a73f32fd3e0774a6833fc5c7f19"
+                "reference": "ed21115d505b4b4f7dc7b5651464e19a2c7f7856"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/6fce887c71076a73f32fd3e0774a6833fc5c7f19",
-                "reference": "6fce887c71076a73f32fd3e0774a6833fc5c7f19",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/ed21115d505b4b4f7dc7b5651464e19a2c7f7856",
+                "reference": "ed21115d505b4b4f7dc7b5651464e19a2c7f7856",
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@@ -6862,7 +6862,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.3"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.5"
             },
             "funding": [
                 {
@@ -6878,7 +6878,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-12-13T07:25:23+00:00"
+            "time": "2023-12-27T15:13:52+00:00"
         },
         {
             "name": "sebastian/cli-parser",