diff --git a/composer.json b/composer.json
index cac61bfd0..fd38dfd0e 100644
--- a/composer.json
+++ b/composer.json
@@ -62,7 +62,7 @@
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         "behat/behat": "3.8.1",
         "dealerdirect/phpcodesniffer-composer-installer": "0.7.0",
-        "phpunit/phpunit": "9.5.*",
+        "phpunit/phpunit": "9.6.*",
         "phpcompatibility/php-compatibility": "8.2.0",
         "wp-coding-standards/wpcs": "0.13.1"
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diff --git a/composer.lock b/composer.lock
index 6d87254c5..a7b416561 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
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             "name": "acmephp/core",
@@ -5245,50 +5245,50 @@
         },
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+            "version": "9.6.33",
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                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "954ca3113a03bf780d22f07bf055d883ee04b65e"
+                "reference": "fea06253ecc0a32faf787bd31b261f56f351d049"
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-                "reference": "954ca3113a03bf780d22f07bf055d883ee04b65e",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/fea06253ecc0a32faf787bd31b261f56f351d049",
+                "reference": "fea06253ecc0a32faf787bd31b261f56f351d049",
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             "require": {
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                 "ext-xml": "*",
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-                "phar-io/manifest": "^2.0.3",
-                "phar-io/version": "^3.0.2",
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+                "phar-io/manifest": "^2.0.4",
+                "phar-io/version": "^3.2.1",
                 "php": ">=7.3",
-                "phpunit/php-code-coverage": "^9.2.13",
-                "phpunit/php-file-iterator": "^3.0.5",
+                "phpunit/php-code-coverage": "^9.2.32",
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-                "sebastian/cli-parser": "^1.0.1",
-                "sebastian/code-unit": "^1.0.6",
-                "sebastian/comparator": "^4.0.8",
-                "sebastian/diff": "^4.0.3",
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-                "sebastian/object-enumerator": "^4.0.3",
-                "sebastian/resource-operations": "^3.0.3",
-                "sebastian/type": "^3.2",
+                "phpunit/php-text-template": "^2.0.4",
+                "phpunit/php-timer": "^5.0.3",
+                "sebastian/cli-parser": "^1.0.2",
+                "sebastian/code-unit": "^1.0.8",
+                "sebastian/comparator": "^4.0.10",
+                "sebastian/diff": "^4.0.6",
+                "sebastian/environment": "^5.1.5",
+                "sebastian/exporter": "^4.0.8",
+                "sebastian/global-state": "^5.0.8",
+                "sebastian/object-enumerator": "^4.0.4",
+                "sebastian/resource-operations": "^3.0.4",
+                "sebastian/type": "^3.2.1",
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             "suggest": {
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-                "ext-xdebug": "*"
+                "ext-soap": "To be able to generate mocks based on WSDL files",
+                "ext-xdebug": "PHP extension that provides line coverage as well as branch and path coverage"
             },
             "bin": [
                 "phpunit"
@@ -5296,7 +5296,7 @@
             "type": "library",
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+                    "dev-master": "9.6-dev"
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@@ -5327,7 +5327,8 @@
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             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.5.28"
+                "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/9.6.33"
             },
             "funding": [
                 {
@@ -5338,12 +5339,20 @@
                     "url": "https://github.com/sebastianbergmann",
                     "type": "github"
                 },
+                {
+                    "url": "https://liberapay.com/sebastianbergmann",
+                    "type": "liberapay"
+                },
+                {
+                    "url": "https://thanks.dev/u/gh/sebastianbergmann",
+                    "type": "thanks_dev"
+                },
                 {
                     "url": "https://tidelift.com/funding/github/packagist/phpunit/phpunit",
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-01-14T12:32:24+00:00"
+            "time": "2026-01-27T05:25:09+00:00"
         },
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@@ -5514,16 +5523,16 @@
         },
         {
             "name": "sebastian/comparator",
-            "version": "4.0.9",
+            "version": "4.0.10",
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                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "67a2df3a62639eab2cc5906065e9805d4fd5dfc5"
+                "reference": "e4df00b9b3571187db2831ae9aada2c6efbd715d"
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-                "reference": "67a2df3a62639eab2cc5906065e9805d4fd5dfc5",
+                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/e4df00b9b3571187db2831ae9aada2c6efbd715d",
+                "reference": "e4df00b9b3571187db2831ae9aada2c6efbd715d",
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@@ -5576,7 +5585,7 @@
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             "support": {
                 "issues": "https://github.com/sebastianbergmann/comparator/issues",
-                "source": "https://github.com/sebastianbergmann/comparator/tree/4.0.9"
+                "source": "https://github.com/sebastianbergmann/comparator/tree/4.0.10"
             },
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@@ -5596,7 +5605,7 @@
                     "type": "tidelift"
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             ],
-            "time": "2025-08-10T06:51:50+00:00"
+            "time": "2026-01-24T09:22:56+00:00"
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         {
             "name": "sebastian/complexity",