diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 34a962a..51622f9 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,24 +11,24 @@ jobs:
         php-version: ['8.1', '8.2', '8.3']
     
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: php-actions/composer@v5
         with:
           php_version: ${{ matrix.php-version }}
           args: --ignore-platform-reqs
-      - uses: php-actions/phpunit@v3
+      - uses: php-actions/phpunit@v4
         with:
           configuration: phpunit.xml
           php_version: ${{ matrix.php-version }}
           php_extensions: bcmath gmp xdebug
-          version: 10.5.20
+          version: 10.5.27
         env:
           XDEBUG_MODE: coverage
   phpcs:
     runs-on: ubuntu-latest
     
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: php-actions/composer@v5
         with:
           php_version: 8.1
diff --git a/composer.json b/composer.json
index db99e38..87a3b2e 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "ext-iconv": "*"
   },
   "require-dev": {
-    "phpunit/phpunit": "10.5.20"
+    "phpunit/phpunit": "10.5.27"
   },
   "suggest": {
     "ext-gmp": "Required to use this package with GMP instead of BCMath"
diff --git a/composer.lock b/composer.lock
index 60b8495..1c588ca 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "116f702aad79000727a2bf2b126cd6c9",
+    "content-hash": "8759deebcf14c4e9661afb6d183b309a",
     "packages": [],
     "packages-dev": [
         {
@@ -69,16 +69,16 @@
         },
         {
             "name": "nikic/php-parser",
-            "version": "v5.0.2",
+            "version": "v5.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/nikic/PHP-Parser.git",
-                "reference": "139676794dc1e9231bf7bcd123cfc0c99182cb13"
+                "reference": "683130c2ff8c2739f4822ff7ac5c873ec529abd1"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/139676794dc1e9231bf7bcd123cfc0c99182cb13",
-                "reference": "139676794dc1e9231bf7bcd123cfc0c99182cb13",
+                "url": "https://api.github.com/repos/nikic/PHP-Parser/zipball/683130c2ff8c2739f4822ff7ac5c873ec529abd1",
+                "reference": "683130c2ff8c2739f4822ff7ac5c873ec529abd1",
                 "shasum": ""
             },
             "require": {
@@ -89,7 +89,7 @@
             },
             "require-dev": {
                 "ircmaxell/php-yacc": "^0.0.7",
-                "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0"
+                "phpunit/phpunit": "^9.0"
             },
             "bin": [
                 "bin/php-parse"
@@ -121,9 +121,9 @@
             ],
             "support": {
                 "issues": "https://github.com/nikic/PHP-Parser/issues",
-                "source": "https://github.com/nikic/PHP-Parser/tree/v5.0.2"
+                "source": "https://github.com/nikic/PHP-Parser/tree/v5.1.0"
             },
-            "time": "2024-03-05T20:51:40+00:00"
+            "time": "2024-07-01T20:03:41+00:00"
         },
         {
             "name": "phar-io/manifest",
@@ -245,16 +245,16 @@
         },
         {
             "name": "phpunit/php-code-coverage",
-            "version": "10.1.14",
+            "version": "10.1.15",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-code-coverage.git",
-                "reference": "e3f51450ebffe8e0efdf7346ae966a656f7d5e5b"
+                "reference": "5da8b1728acd1e6ffdf2ff32ffbdfd04307f26ae"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/e3f51450ebffe8e0efdf7346ae966a656f7d5e5b",
-                "reference": "e3f51450ebffe8e0efdf7346ae966a656f7d5e5b",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-code-coverage/zipball/5da8b1728acd1e6ffdf2ff32ffbdfd04307f26ae",
+                "reference": "5da8b1728acd1e6ffdf2ff32ffbdfd04307f26ae",
                 "shasum": ""
             },
             "require": {
@@ -311,7 +311,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/php-code-coverage/issues",
                 "security": "https://github.com/sebastianbergmann/php-code-coverage/security/policy",
-                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/10.1.14"
+                "source": "https://github.com/sebastianbergmann/php-code-coverage/tree/10.1.15"
             },
             "funding": [
                 {
@@ -319,7 +319,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2024-03-12T15:33:41+00:00"
+            "time": "2024-06-29T08:25:15+00:00"
         },
         {
             "name": "phpunit/php-file-iterator",
@@ -566,16 +566,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "10.5.20",
+            "version": "10.5.27",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "547d314dc24ec1e177720d45c6263fb226cc2ae3"
+                "reference": "2425f713b2a5350568ccb1a2d3984841a23e83c5"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/547d314dc24ec1e177720d45c6263fb226cc2ae3",
-                "reference": "547d314dc24ec1e177720d45c6263fb226cc2ae3",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/2425f713b2a5350568ccb1a2d3984841a23e83c5",
+                "reference": "2425f713b2a5350568ccb1a2d3984841a23e83c5",
                 "shasum": ""
             },
             "require": {
@@ -585,26 +585,26 @@
                 "ext-mbstring": "*",
                 "ext-xml": "*",
                 "ext-xmlwriter": "*",
-                "myclabs/deep-copy": "^1.10.1",
-                "phar-io/manifest": "^2.0.3",
-                "phar-io/version": "^3.0.2",
+                "myclabs/deep-copy": "^1.12.0",
+                "phar-io/manifest": "^2.0.4",
+                "phar-io/version": "^3.2.1",
                 "php": ">=8.1",
-                "phpunit/php-code-coverage": "^10.1.5",
-                "phpunit/php-file-iterator": "^4.0",
-                "phpunit/php-invoker": "^4.0",
-                "phpunit/php-text-template": "^3.0",
-                "phpunit/php-timer": "^6.0",
-                "sebastian/cli-parser": "^2.0",
-                "sebastian/code-unit": "^2.0",
-                "sebastian/comparator": "^5.0",
-                "sebastian/diff": "^5.0",
-                "sebastian/environment": "^6.0",
-                "sebastian/exporter": "^5.1",
-                "sebastian/global-state": "^6.0.1",
-                "sebastian/object-enumerator": "^5.0",
-                "sebastian/recursion-context": "^5.0",
-                "sebastian/type": "^4.0",
-                "sebastian/version": "^4.0"
+                "phpunit/php-code-coverage": "^10.1.15",
+                "phpunit/php-file-iterator": "^4.1.0",
+                "phpunit/php-invoker": "^4.0.0",
+                "phpunit/php-text-template": "^3.0.1",
+                "phpunit/php-timer": "^6.0.0",
+                "sebastian/cli-parser": "^2.0.1",
+                "sebastian/code-unit": "^2.0.0",
+                "sebastian/comparator": "^5.0.1",
+                "sebastian/diff": "^5.1.1",
+                "sebastian/environment": "^6.1.0",
+                "sebastian/exporter": "^5.1.2",
+                "sebastian/global-state": "^6.0.2",
+                "sebastian/object-enumerator": "^5.0.0",
+                "sebastian/recursion-context": "^5.0.0",
+                "sebastian/type": "^4.0.0",
+                "sebastian/version": "^4.0.1"
             },
             "suggest": {
                 "ext-soap": "To be able to generate mocks based on WSDL files"
@@ -647,7 +647,7 @@
             "support": {
                 "issues": "https://github.com/sebastianbergmann/phpunit/issues",
                 "security": "https://github.com/sebastianbergmann/phpunit/security/policy",
-                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.20"
+                "source": "https://github.com/sebastianbergmann/phpunit/tree/10.5.27"
             },
             "funding": [
                 {
@@ -663,7 +663,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-04-24T06:32:35+00:00"
+            "time": "2024-07-10T11:48:06+00:00"
         },
         {
             "name": "sebastian/cli-parser",
diff --git a/test/unit/BitPayKeyUtils/Storage/EncryptedFilesystemStorageTest.php b/test/unit/BitPayKeyUtils/Storage/EncryptedFilesystemStorageTest.php
index c03f316..989e3ba 100644
--- a/test/unit/BitPayKeyUtils/Storage/EncryptedFilesystemStorageTest.php
+++ b/test/unit/BitPayKeyUtils/Storage/EncryptedFilesystemStorageTest.php
@@ -19,7 +19,7 @@ public function testInstanceOf(): void
     public function testPersist(): void
     {
         $encryptedFilesystemStorage = $this->createClassObject();
-        $keyInterface = $this->getMockBuilder(Key::class)->setMockClassName('KeyMock')->getMock();
+        $keyInterface = $this->getMockBuilder(Key::class)->setMockClassName('KeyMock2')->getMock();
         $keyInterface->method('getId')->willReturn(__DIR__ . '/test11.txt');
         self::assertFileExists(__DIR__ . '/test11.txt');
         self::assertSame(null, $encryptedFilesystemStorage->persist($keyInterface));
diff --git a/test/unit/BitPayKeyUtils/Storage/FilesystemStorageTest.php b/test/unit/BitPayKeyUtils/Storage/FilesystemStorageTest.php
index 489ce42..145b1a0 100644
--- a/test/unit/BitPayKeyUtils/Storage/FilesystemStorageTest.php
+++ b/test/unit/BitPayKeyUtils/Storage/FilesystemStorageTest.php
@@ -20,7 +20,7 @@ public function testInstanceOf(): void
     public function testPersist(): void
     {
         $filesystemStorage = $this->createClassObject();
-        $keyInterface = $this->getMockBuilder(Key::class)->setMockClassName('KeyMock')->getMock();
+        $keyInterface = $this->getMockBuilder(Key::class)->setMockClassName('KeyMock1')->getMock();
         $keyInterface->method('getId')->willReturn(__DIR__ . '/test1.txt');
         self::assertFileExists(__DIR__ . '/test1.txt');
         @chmod(__DIR__ . 'test1.txt', 0777);