diff --git a/composer.json b/composer.json
index 88b5ecd..fa6fa13 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
     "dealerdirect/phpcodesniffer-composer-installer": "0.6.0",
     "mockery/mockery": "1.3.1",
     "phpcompatibility/phpcompatibility-wp": "2.1.0",
-    "phpunit/phpunit": "9.1.1",
+    "phpunit/phpunit": "9.1.2",
     "squizlabs/php_codesniffer": "3.5.5",
     "wp-coding-standards/wpcs": "2.2.1"
   },
diff --git a/composer.lock b/composer.lock
index f406649..5c441e6 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": "7f6ba6f1eda331a2726793acae7819c1",
+    "content-hash": "f73b718309befdc845be6c9a1ae8a641",
     "packages": [
         {
             "name": "cedaro/wp-plugin",
@@ -1029,16 +1029,16 @@
         },
         {
             "name": "phpunit/php-file-iterator",
-            "version": "3.0.0",
+            "version": "3.0.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-file-iterator.git",
-                "reference": "354d4a5faa7449a377a18b94a2026ca3415e3d7a"
+                "reference": "4ac5b3e13df14829daa60a2eb4fdd2f2b7d33cf4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-file-iterator/zipball/354d4a5faa7449a377a18b94a2026ca3415e3d7a",
-                "reference": "354d4a5faa7449a377a18b94a2026ca3415e3d7a",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-file-iterator/zipball/4ac5b3e13df14829daa60a2eb4fdd2f2b7d33cf4",
+                "reference": "4ac5b3e13df14829daa60a2eb4fdd2f2b7d33cf4",
                 "shasum": ""
             },
             "require": {
@@ -1075,7 +1075,7 @@
                 "filesystem",
                 "iterator"
             ],
-            "time": "2020-02-07T06:05:22+00:00"
+            "time": "2020-04-18T05:02:12+00:00"
         },
         {
             "name": "phpunit/php-invoker",
@@ -1178,16 +1178,16 @@
         },
         {
             "name": "phpunit/php-timer",
-            "version": "3.0.0",
+            "version": "3.1.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/php-timer.git",
-                "reference": "4118013a4d0f97356eae8e7fb2f6c6472575d1df"
+                "reference": "dc9368fae6ef2ffa57eba80a7410bcef81df6258"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/4118013a4d0f97356eae8e7fb2f6c6472575d1df",
-                "reference": "4118013a4d0f97356eae8e7fb2f6c6472575d1df",
+                "url": "https://api.github.com/repos/sebastianbergmann/php-timer/zipball/dc9368fae6ef2ffa57eba80a7410bcef81df6258",
+                "reference": "dc9368fae6ef2ffa57eba80a7410bcef81df6258",
                 "shasum": ""
             },
             "require": {
@@ -1199,7 +1199,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.0-dev"
+                    "dev-master": "3.1-dev"
                 }
             },
             "autoload": {
@@ -1223,7 +1223,7 @@
             "keywords": [
                 "timer"
             ],
-            "time": "2020-02-07T06:08:11+00:00"
+            "time": "2020-04-20T06:00:37+00:00"
         },
         {
             "name": "phpunit/php-token-stream",
@@ -1276,16 +1276,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "9.1.1",
+            "version": "9.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "848f6521c906500e66229668768576d35de0227e"
+                "reference": "d99d4e69c98c18d5c5f033c68c623880536f37be"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/848f6521c906500e66229668768576d35de0227e",
-                "reference": "848f6521c906500e66229668768576d35de0227e",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/d99d4e69c98c18d5c5f033c68c623880536f37be",
+                "reference": "d99d4e69c98c18d5c5f033c68c623880536f37be",
                 "shasum": ""
             },
             "require": {
@@ -1305,7 +1305,7 @@
                 "phpunit/php-file-iterator": "^3.0",
                 "phpunit/php-invoker": "^3.0",
                 "phpunit/php-text-template": "^2.0",
-                "phpunit/php-timer": "^3.0",
+                "phpunit/php-timer": "^3.1.4",
                 "sebastian/code-unit": "^1.0",
                 "sebastian/comparator": "^4.0",
                 "sebastian/diff": "^4.0",
@@ -1318,7 +1318,8 @@
                 "sebastian/version": "^3.0"
             },
             "require-dev": {
-                "ext-pdo": "*"
+                "ext-pdo": "*",
+                "phpspec/prophecy-phpunit": "^2.0"
             },
             "suggest": {
                 "ext-soap": "*",
@@ -1359,7 +1360,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2020-04-03T14:40:04+00:00"
+            "time": "2020-04-20T06:24:01+00:00"
         },
         {
             "name": "sebastian/code-unit",
@@ -1574,16 +1575,16 @@
         },
         {
             "name": "sebastian/environment",
-            "version": "5.0.2",
+            "version": "5.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/environment.git",
-                "reference": "c39c1db0a5cffc98173f3de5a17d489d1043fd7b"
+                "reference": "c753f04d68cd489b6973cf9b4e505e191af3b05c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/c39c1db0a5cffc98173f3de5a17d489d1043fd7b",
-                "reference": "c39c1db0a5cffc98173f3de5a17d489d1043fd7b",
+                "url": "https://api.github.com/repos/sebastianbergmann/environment/zipball/c753f04d68cd489b6973cf9b4e505e191af3b05c",
+                "reference": "c753f04d68cd489b6973cf9b4e505e191af3b05c",
                 "shasum": ""
             },
             "require": {
@@ -1623,7 +1624,7 @@
                 "environment",
                 "hhvm"
             ],
-            "time": "2020-03-31T12:14:15+00:00"
+            "time": "2020-04-14T13:36:52+00:00"
         },
         {
             "name": "sebastian/exporter",
@@ -2190,16 +2191,16 @@
         },
         {
             "name": "webmozart/assert",
-            "version": "1.7.0",
+            "version": "1.8.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/webmozart/assert.git",
-                "reference": "aed98a490f9a8f78468232db345ab9cf606cf598"
+                "reference": "ab2cb0b3b559010b75981b1bdce728da3ee90ad6"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/webmozart/assert/zipball/aed98a490f9a8f78468232db345ab9cf606cf598",
-                "reference": "aed98a490f9a8f78468232db345ab9cf606cf598",
+                "url": "https://api.github.com/repos/webmozart/assert/zipball/ab2cb0b3b559010b75981b1bdce728da3ee90ad6",
+                "reference": "ab2cb0b3b559010b75981b1bdce728da3ee90ad6",
                 "shasum": ""
             },
             "require": {
@@ -2207,7 +2208,7 @@
                 "symfony/polyfill-ctype": "^1.8"
             },
             "conflict": {
-                "vimeo/psalm": "<3.6.0"
+                "vimeo/psalm": "<3.9.1"
             },
             "require-dev": {
                 "phpunit/phpunit": "^4.8.36 || ^7.5.13"
@@ -2234,7 +2235,7 @@
                 "check",
                 "validate"
             ],
-            "time": "2020-02-14T12:15:55+00:00"
+            "time": "2020-04-18T12:12:48+00:00"
         },
         {
             "name": "wp-coding-standards/wpcs",