diff --git a/.github/workflows/mt.yml b/.github/workflows/mt.yml
index ce8efd52..175bae1f 100644
--- a/.github/workflows/mt.yml
+++ b/.github/workflows/mt.yml
@@ -32,11 +32,11 @@ jobs:
           wget https://github.com/infection/infection/releases/download/0.28.1/infection.phar
           chmod +x infection.phar
 
-      - name: Run Infection for added files only
+      - name: Run Infection for touched lines only
         if: github.event_name == 'pull_request'
         run: |
           git fetch --depth=1 origin $GITHUB_BASE_REF
-          php infection.phar -j8 --git-diff-lines --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered
+          php infection.phar --threads=max --git-diff-lines --git-diff-base=origin/$GITHUB_BASE_REF --logger-github --ignore-msi-with-no-mutations --only-covered --min-covered-msi=100
 
       - name: Run Infection for all files
         if: github.event_name == 'push'
diff --git a/composer.lock b/composer.lock
index d5210453..772000c4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1736,12 +1736,12 @@
             "source": {
                 "type": "git",
                 "url": "https://github.com/eloquent/phony.git",
-                "reference": "3732bb22f780eb2f305a21d04b83c6f47f11aba3"
+                "reference": "3d093d78e83fa5066559854505f01b6ea19af12e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/eloquent/phony/zipball/3732bb22f780eb2f305a21d04b83c6f47f11aba3",
-                "reference": "3732bb22f780eb2f305a21d04b83c6f47f11aba3",
+                "url": "https://api.github.com/repos/eloquent/phony/zipball/3d093d78e83fa5066559854505f01b6ea19af12e",
+                "reference": "3d093d78e83fa5066559854505f01b6ea19af12e",
                 "shasum": ""
             },
             "require": {
@@ -1802,7 +1802,8 @@
                 "issues": "https://github.com/eloquent/phony/issues",
                 "source": "https://github.com/eloquent/phony/tree/main"
             },
-            "time": "2023-03-11T04:36:34+00:00"
+            "abandoned": true,
+            "time": "2023-07-08T03:46:48+00:00"
         },
         {
             "name": "eloquent/phony-phpunit",
@@ -1875,6 +1876,7 @@
                 "issues": "https://github.com/eloquent/phony-phpunit/issues",
                 "source": "https://github.com/eloquent/phony-phpunit/tree/7.1.0"
             },
+            "abandoned": true,
             "time": "2020-12-21T09:36:47+00:00"
         },
         {
@@ -2282,16 +2284,16 @@
         },
         {
             "name": "phpstan/phpdoc-parser",
-            "version": "1.26.0",
+            "version": "1.28.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpdoc-parser.git",
-                "reference": "231e3186624c03d7e7c890ec662b81e6b0405227"
+                "reference": "cd06d6b1a1b3c75b0b83f97577869fd85a3cd4fb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/231e3186624c03d7e7c890ec662b81e6b0405227",
-                "reference": "231e3186624c03d7e7c890ec662b81e6b0405227",
+                "url": "https://api.github.com/repos/phpstan/phpdoc-parser/zipball/cd06d6b1a1b3c75b0b83f97577869fd85a3cd4fb",
+                "reference": "cd06d6b1a1b3c75b0b83f97577869fd85a3cd4fb",
                 "shasum": ""
             },
             "require": {
@@ -2323,22 +2325,22 @@
             "description": "PHPDoc parser with support for nullable, intersection and generic types",
             "support": {
                 "issues": "https://github.com/phpstan/phpdoc-parser/issues",
-                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.26.0"
+                "source": "https://github.com/phpstan/phpdoc-parser/tree/1.28.0"
             },
-            "time": "2024-02-23T16:05:55+00:00"
+            "time": "2024-04-03T18:51:33+00:00"
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.10.66",
+            "version": "1.10.67",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "94779c987e4ebd620025d9e5fdd23323903950bd"
+                "reference": "16ddbe776f10da6a95ebd25de7c1dbed397dc493"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/94779c987e4ebd620025d9e5fdd23323903950bd",
-                "reference": "94779c987e4ebd620025d9e5fdd23323903950bd",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/16ddbe776f10da6a95ebd25de7c1dbed397dc493",
+                "reference": "16ddbe776f10da6a95ebd25de7c1dbed397dc493",
                 "shasum": ""
             },
             "require": {
@@ -2381,13 +2383,9 @@
                 {
                     "url": "https://github.com/phpstan",
                     "type": "github"
-                },
-                {
-                    "url": "https://tidelift.com/funding/github/packagist/phpstan/phpstan",
-                    "type": "tidelift"
                 }
             ],
-            "time": "2024-03-28T16:17:31+00:00"
+            "time": "2024-04-16T07:22:02+00:00"
         },
         {
             "name": "phpstan/phpstan-phpunit",
@@ -4023,16 +4021,16 @@
         },
         {
             "name": "symfony/config",
-            "version": "v5.4.31",
+            "version": "v5.4.38",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/config.git",
-                "reference": "dd5ea39de228813aba0c23c3a4153da2a4cf3cd9"
+                "reference": "3dcd47d4bbd9fea4d1210e7a7a0a5ca02d99df14"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/config/zipball/dd5ea39de228813aba0c23c3a4153da2a4cf3cd9",
-                "reference": "dd5ea39de228813aba0c23c3a4153da2a4cf3cd9",
+                "url": "https://api.github.com/repos/symfony/config/zipball/3dcd47d4bbd9fea4d1210e7a7a0a5ca02d99df14",
+                "reference": "3dcd47d4bbd9fea4d1210e7a7a0a5ca02d99df14",
                 "shasum": ""
             },
             "require": {
@@ -4082,7 +4080,7 @@
             "description": "Helps you find, load, combine, autofill and validate configuration values of any kind",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/config/tree/v5.4.31"
+                "source": "https://github.com/symfony/config/tree/v5.4.38"
             },
             "funding": [
                 {
@@ -4098,20 +4096,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-11-09T08:22:43+00:00"
+            "time": "2024-03-22T10:04:40+00:00"
         },
         {
             "name": "symfony/console",
-            "version": "v5.4.35",
+            "version": "v5.4.36",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "dbdf6adcb88d5f83790e1efb57ef4074309d3931"
+                "reference": "39f75d9d73d0c11952fdcecf4877b4d0f62a8f6e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/dbdf6adcb88d5f83790e1efb57ef4074309d3931",
-                "reference": "dbdf6adcb88d5f83790e1efb57ef4074309d3931",
+                "url": "https://api.github.com/repos/symfony/console/zipball/39f75d9d73d0c11952fdcecf4877b4d0f62a8f6e",
+                "reference": "39f75d9d73d0c11952fdcecf4877b4d0f62a8f6e",
                 "shasum": ""
             },
             "require": {
@@ -4181,7 +4179,7 @@
                 "terminal"
             ],
             "support": {
-                "source": "https://github.com/symfony/console/tree/v5.4.35"
+                "source": "https://github.com/symfony/console/tree/v5.4.36"
             },
             "funding": [
                 {
@@ -4197,7 +4195,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-01-23T14:28:09+00:00"
+            "time": "2024-02-20T16:33:57+00:00"
         },
         {
             "name": "symfony/event-dispatcher",
@@ -4286,16 +4284,16 @@
         },
         {
             "name": "symfony/event-dispatcher-contracts",
-            "version": "v2.5.2",
+            "version": "v2.5.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher-contracts.git",
-                "reference": "f98b54df6ad059855739db6fcbc2d36995283fe1"
+                "reference": "540f4c73e87fd0c71ca44a6aa305d024ac68cb73"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher-contracts/zipball/f98b54df6ad059855739db6fcbc2d36995283fe1",
-                "reference": "f98b54df6ad059855739db6fcbc2d36995283fe1",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher-contracts/zipball/540f4c73e87fd0c71ca44a6aa305d024ac68cb73",
+                "reference": "540f4c73e87fd0c71ca44a6aa305d024ac68cb73",
                 "shasum": ""
             },
             "require": {
@@ -4345,7 +4343,7 @@
                 "standards"
             ],
             "support": {
-                "source": "https://github.com/symfony/event-dispatcher-contracts/tree/v2.5.2"
+                "source": "https://github.com/symfony/event-dispatcher-contracts/tree/v2.5.3"
             },
             "funding": [
                 {
@@ -4361,7 +4359,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-01-02T09:53:40+00:00"
+            "time": "2024-01-23T13:51:25+00:00"
         },
         {
             "name": "symfony/finder",
@@ -4656,16 +4654,16 @@
         },
         {
             "name": "symfony/polyfill-php81",
-            "version": "v1.28.0",
+            "version": "v1.29.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-php81.git",
-                "reference": "7581cd600fa9fd681b797d00b02f068e2f13263b"
+                "reference": "c565ad1e63f30e7477fc40738343c62b40bc672d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php81/zipball/7581cd600fa9fd681b797d00b02f068e2f13263b",
-                "reference": "7581cd600fa9fd681b797d00b02f068e2f13263b",
+                "url": "https://api.github.com/repos/symfony/polyfill-php81/zipball/c565ad1e63f30e7477fc40738343c62b40bc672d",
+                "reference": "c565ad1e63f30e7477fc40738343c62b40bc672d",
                 "shasum": ""
             },
             "require": {
@@ -4673,9 +4671,6 @@
             },
             "type": "library",
             "extra": {
-                "branch-alias": {
-                    "dev-main": "1.28-dev"
-                },
                 "thanks": {
                     "name": "symfony/polyfill",
                     "url": "https://github.com/symfony/polyfill"
@@ -4715,7 +4710,7 @@
                 "shim"
             ],
             "support": {
-                "source": "https://github.com/symfony/polyfill-php81/tree/v1.28.0"
+                "source": "https://github.com/symfony/polyfill-php81/tree/v1.29.0"
             },
             "funding": [
                 {
@@ -4731,20 +4726,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-01-26T09:26:14+00:00"
+            "time": "2024-01-29T20:11:03+00:00"
         },
         {
             "name": "symfony/process",
-            "version": "v5.4.35",
+            "version": "v5.4.36",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "cbc28e34015ad50166fc2f9c8962d28d0fe861eb"
+                "reference": "4fdf34004f149cc20b2f51d7d119aa500caad975"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/cbc28e34015ad50166fc2f9c8962d28d0fe861eb",
-                "reference": "cbc28e34015ad50166fc2f9c8962d28d0fe861eb",
+                "url": "https://api.github.com/repos/symfony/process/zipball/4fdf34004f149cc20b2f51d7d119aa500caad975",
+                "reference": "4fdf34004f149cc20b2f51d7d119aa500caad975",
                 "shasum": ""
             },
             "require": {
@@ -4777,7 +4772,7 @@
             "description": "Executes commands in sub-processes",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/process/tree/v5.4.35"
+                "source": "https://github.com/symfony/process/tree/v5.4.36"
             },
             "funding": [
                 {
@@ -4793,20 +4788,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-01-23T13:51:25+00:00"
+            "time": "2024-02-12T15:49:53+00:00"
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v5.4.21",
+            "version": "v5.4.35",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "f83692cd869a6f2391691d40a01e8acb89e76fee"
+                "reference": "887762aa99ff16f65dc8b48aafead415f942d407"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/f83692cd869a6f2391691d40a01e8acb89e76fee",
-                "reference": "f83692cd869a6f2391691d40a01e8acb89e76fee",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/887762aa99ff16f65dc8b48aafead415f942d407",
+                "reference": "887762aa99ff16f65dc8b48aafead415f942d407",
                 "shasum": ""
             },
             "require": {
@@ -4839,7 +4834,7 @@
             "description": "Provides a way to profile code",
             "homepage": "https://symfony.com",
             "support": {
-                "source": "https://github.com/symfony/stopwatch/tree/v5.4.21"
+                "source": "https://github.com/symfony/stopwatch/tree/v5.4.35"
             },
             "funding": [
                 {
@@ -4855,20 +4850,20 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2023-02-14T08:03:56+00:00"
+            "time": "2024-01-23T13:51:25+00:00"
         },
         {
             "name": "symfony/string",
-            "version": "v5.4.35",
+            "version": "v5.4.36",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/string.git",
-                "reference": "c209c4d0559acce1c9a2067612cfb5d35756edc2"
+                "reference": "4e232c83622bd8cd32b794216aa29d0d266d353b"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/string/zipball/c209c4d0559acce1c9a2067612cfb5d35756edc2",
-                "reference": "c209c4d0559acce1c9a2067612cfb5d35756edc2",
+                "url": "https://api.github.com/repos/symfony/string/zipball/4e232c83622bd8cd32b794216aa29d0d266d353b",
+                "reference": "4e232c83622bd8cd32b794216aa29d0d266d353b",
                 "shasum": ""
             },
             "require": {
@@ -4925,7 +4920,7 @@
                 "utf8"
             ],
             "support": {
-                "source": "https://github.com/symfony/string/tree/v5.4.35"
+                "source": "https://github.com/symfony/string/tree/v5.4.36"
             },
             "funding": [
                 {
@@ -4941,7 +4936,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2024-01-23T13:51:25+00:00"
+            "time": "2024-02-01T08:49:30+00:00"
         },
         {
             "name": "symfony/yaml",
diff --git a/src/Connector/Client.php b/src/Connector/Client.php
index 719e5ea0..50ef95fc 100644
--- a/src/Connector/Client.php
+++ b/src/Connector/Client.php
@@ -2,11 +2,11 @@
 
 namespace AcquiaCloudApi\Connector;
 
-use http\Exception\RuntimeException;
 use Psr\Http\Message\ResponseInterface;
 use GuzzleHttp\Exception\BadResponseException;
 use AcquiaCloudApi\Exception\ApiErrorException;
 use Psr\Http\Message\StreamInterface;
+use RuntimeException;
 
 /**
  * Class Client
@@ -103,7 +103,7 @@ public function modifyOptions(): array
      */
     public function request(string $verb, string $path, array $options = []): mixed
     {
-        // Put options sent with API calls into a property so they can be accessed
+        // Put options sent with API calls into a property, so they can be accessed
         // and therefore tested in tests.
         $this->requestOptions = $options;
 
@@ -151,9 +151,18 @@ public function makeRequest(string $verb, string $path, array $options = []): Re
      */
     public function processResponse(ResponseInterface $response): mixed
     {
-
+        // Internal server errors return HTML instead of JSON, breaking our parsing.
+        if ($response->getStatusCode() === 500) {
+            throw new RuntimeException(
+                'Cloud API internal server error. Status '
+                . $response->getStatusCode()
+                . '. Request ID '
+                . $response->getHeaderLine('X-Request-Id')
+            );
+        }
         $body_json = $response->getBody();
         $body = json_decode($body_json, null, 512, JSON_THROW_ON_ERROR);
+        // Internal server errors may also return a 200 response and empty body.
         if (is_null($body)) {
             throw new RuntimeException(
                 'Response contained an empty body. Status '
diff --git a/tests/Connector/ClientTest.php b/tests/Connector/ClientTest.php
index 34ce5030..3b80e5ec 100644
--- a/tests/Connector/ClientTest.php
+++ b/tests/Connector/ClientTest.php
@@ -6,6 +6,8 @@
 use AcquiaCloudApi\Connector\Client;
 use AcquiaCloudApi\Connector\Connector;
 use AcquiaCloudApi\Endpoints\Code;
+use GuzzleHttp\Psr7\Response;
+use RuntimeException;
 
 class ClientTest extends CloudApiTestCase
 {
@@ -42,6 +44,20 @@ public function testFilteredQuery(): void
         }
     }
 
+    public function testServerError(): void
+    {
+        $response = new Response(500, ['X-Request-Id' => 'v-918d0182-f8f6-11ee-ac5b-9f3072a91621']);
+        $client = $this->getMockClient($response);
+
+        $code = new Code($client);
+        $this->expectException(RuntimeException::class);
+        $message = <<<EOD
+Cloud API internal server error. Status 500. Request ID v-918d0182-f8f6-11ee-ac5b-9f3072a91621
+EOD;
+        $this->expectExceptionMessage($message);
+        $code->getAll('8ff6c046-ec64-4ce4-bea6-27845ec18600');
+    }
+
     public function testClearQuery(): void
     {
         $client = $this->getMockClient();