diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 27cc5d8..03d977c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,21 +7,21 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Cache Composer dependencies
-        uses: actions/cache@v2
+        uses: actions/cache@v3
         with:
           path: /tmp/composer-cache
           key: ${{ runner.os }}-${{ hashFiles('**/composer.lock') }}
 
-      - uses: php-actions/composer@v5
+      - uses: php-actions/composer@v6
 
       - name: Archive build
         run: mkdir /tmp/github-actions/ && tar -cvf /tmp/github-actions/build.tar ./
 
       - name: Upload build archive for test runners
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v3
         with:
           name: build-artifact
           path: /tmp/github-actions
@@ -31,7 +31,7 @@ jobs:
     needs: [composer]
 
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: build-artifact
           path: /tmp/github-actions
@@ -40,9 +40,9 @@ jobs:
         run: tar -xvf /tmp/github-actions/build.tar ./
 
       - name: PHP Unit tests
-        uses: php-actions/phpunit@v2
+        uses: php-actions/phpunit@v3
         with:
-          php_version: 8.0
+          php_version: 8.1
           php_extensions: xdebug
           configuration: test/phpunit/phpunit.xml
           bootstrap: vendor/autoload.php
@@ -52,7 +52,7 @@ jobs:
     needs: [composer]
 
     steps:
-      - uses: actions/download-artifact@v2
+      - uses: actions/download-artifact@v3
         with:
           name: build-artifact
           path: /tmp/github-actions
@@ -61,6 +61,7 @@ jobs:
         run: tar -xvf /tmp/github-actions/build.tar ./
 
       - name: PHP Static Analysis
-        uses: php-actions/phpstan@v2
+        uses: php-actions/phpstan@v3
         with:
-          path: src/
\ No newline at end of file
+          path: src/
+          php_version: 8.1
diff --git a/composer.lock b/composer.lock
index acad0c7..096317e 100644
--- a/composer.lock
+++ b/composer.lock
@@ -8,16 +8,16 @@
     "packages": [
         {
             "name": "phpgt/dataobject",
-            "version": "v1.0.0",
+            "version": "v1.0.4",
             "source": {
                 "type": "git",
                 "url": "https://github.com/PhpGt/DataObject.git",
-                "reference": "02e08144a0ed4b2bf022baf125803dfbbfc1b487"
+                "reference": "dde4c5ba9e4cd0e048e4558107da32ce3f9ce7e4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/PhpGt/DataObject/zipball/02e08144a0ed4b2bf022baf125803dfbbfc1b487",
-                "reference": "02e08144a0ed4b2bf022baf125803dfbbfc1b487",
+                "url": "https://api.github.com/repos/PhpGt/DataObject/zipball/dde4c5ba9e4cd0e048e4558107da32ce3f9ce7e4",
+                "reference": "dde4c5ba9e4cd0e048e4558107da32ce3f9ce7e4",
                 "shasum": ""
             },
             "require": {
@@ -26,8 +26,8 @@
                 "phpgt/typesafegetter": "^1.0"
             },
             "require-dev": {
-                "phpstan/phpstan": ">=0.12.64",
-                "phpunit/phpunit": "9.*"
+                "phpstan/phpstan": "^v1.8",
+                "phpunit/phpunit": "^v9.5"
             },
             "type": "library",
             "autoload": {
@@ -48,7 +48,7 @@
             "description": " Structured, type-safe, immutable data transfer.",
             "support": {
                 "issues": "https://github.com/PhpGt/DataObject/issues",
-                "source": "https://github.com/PhpGt/DataObject/tree/v1.0.0"
+                "source": "https://github.com/PhpGt/DataObject/tree/v1.0.4"
             },
             "funding": [
                 {
@@ -56,7 +56,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-03-15T18:03:44+00:00"
+            "time": "2022-09-15T09:21:05+00:00"
         },
         {
             "name": "phpgt/typesafegetter",
@@ -408,16 +408,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "1.8.4",
+            "version": "1.8.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "eed4c9da531f6ebb4787235b6fb486e2c20f34e5"
+                "reference": "f6598a5ff12ca4499a836815e08b4d77a2ddeb20"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/eed4c9da531f6ebb4787235b6fb486e2c20f34e5",
-                "reference": "eed4c9da531f6ebb4787235b6fb486e2c20f34e5",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/f6598a5ff12ca4499a836815e08b4d77a2ddeb20",
+                "reference": "f6598a5ff12ca4499a836815e08b4d77a2ddeb20",
                 "shasum": ""
             },
             "require": {
@@ -447,7 +447,7 @@
             ],
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/1.8.4"
+                "source": "https://github.com/phpstan/phpstan/tree/1.8.5"
             },
             "funding": [
                 {
@@ -463,7 +463,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2022-09-03T13:08:04+00:00"
+            "time": "2022-09-07T16:05:32+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -1050,16 +1050,16 @@
         },
         {
             "name": "sebastian/comparator",
-            "version": "4.0.6",
+            "version": "4.0.8",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/comparator.git",
-                "reference": "55f4261989e546dc112258c7a75935a81a7ce382"
+                "reference": "fa0f136dd2334583309d32b62544682ee972b51a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/55f4261989e546dc112258c7a75935a81a7ce382",
-                "reference": "55f4261989e546dc112258c7a75935a81a7ce382",
+                "url": "https://api.github.com/repos/sebastianbergmann/comparator/zipball/fa0f136dd2334583309d32b62544682ee972b51a",
+                "reference": "fa0f136dd2334583309d32b62544682ee972b51a",
                 "shasum": ""
             },
             "require": {
@@ -1112,7 +1112,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/comparator/issues",
-                "source": "https://github.com/sebastianbergmann/comparator/tree/4.0.6"
+                "source": "https://github.com/sebastianbergmann/comparator/tree/4.0.8"
             },
             "funding": [
                 {
@@ -1120,7 +1120,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2020-10-26T15:49:45+00:00"
+            "time": "2022-09-14T12:41:17+00:00"
         },
         {
             "name": "sebastian/complexity",
@@ -1310,16 +1310,16 @@
         },
         {
             "name": "sebastian/exporter",
-            "version": "4.0.4",
+            "version": "4.0.5",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/exporter.git",
-                "reference": "65e8b7db476c5dd267e65eea9cab77584d3cfff9"
+                "reference": "ac230ed27f0f98f597c8a2b6eb7ac563af5e5b9d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/65e8b7db476c5dd267e65eea9cab77584d3cfff9",
-                "reference": "65e8b7db476c5dd267e65eea9cab77584d3cfff9",
+                "url": "https://api.github.com/repos/sebastianbergmann/exporter/zipball/ac230ed27f0f98f597c8a2b6eb7ac563af5e5b9d",
+                "reference": "ac230ed27f0f98f597c8a2b6eb7ac563af5e5b9d",
                 "shasum": ""
             },
             "require": {
@@ -1375,7 +1375,7 @@
             ],
             "support": {
                 "issues": "https://github.com/sebastianbergmann/exporter/issues",
-                "source": "https://github.com/sebastianbergmann/exporter/tree/4.0.4"
+                "source": "https://github.com/sebastianbergmann/exporter/tree/4.0.5"
             },
             "funding": [
                 {
@@ -1383,7 +1383,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2021-11-11T14:18:36+00:00"
+            "time": "2022-09-14T06:03:37+00:00"
         },
         {
             "name": "sebastian/global-state",
@@ -1738,16 +1738,16 @@
         },
         {
             "name": "sebastian/type",
-            "version": "3.1.0",
+            "version": "3.2.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/type.git",
-                "reference": "fb44e1cc6e557418387ad815780360057e40753e"
+                "reference": "fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/fb44e1cc6e557418387ad815780360057e40753e",
-                "reference": "fb44e1cc6e557418387ad815780360057e40753e",
+                "url": "https://api.github.com/repos/sebastianbergmann/type/zipball/fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e",
+                "reference": "fb3fe09c5f0bae6bc27ef3ce933a1e0ed9464b6e",
                 "shasum": ""
             },
             "require": {
@@ -1759,7 +1759,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.1-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -1782,7 +1782,7 @@
             "homepage": "https://github.com/sebastianbergmann/type",
             "support": {
                 "issues": "https://github.com/sebastianbergmann/type/issues",
-                "source": "https://github.com/sebastianbergmann/type/tree/3.1.0"
+                "source": "https://github.com/sebastianbergmann/type/tree/3.2.0"
             },
             "funding": [
                 {
@@ -1790,7 +1790,7 @@
                     "type": "github"
                 }
             ],
-            "time": "2022-08-29T06:55:37+00:00"
+            "time": "2022-09-12T14:47:03+00:00"
         },
         {
             "name": "sebastian/version",
diff --git a/src/JsonObjectBuilder.php b/src/JsonObjectBuilder.php
index 90a2b96..6304e9b 100644
--- a/src/JsonObjectBuilder.php
+++ b/src/JsonObjectBuilder.php
@@ -12,8 +12,13 @@
 use stdClass;
 
 class JsonObjectBuilder extends DataObjectBuilder {
+	public function __construct(
+		private readonly int $depth = 512,
+	) {
+	}
+
 	public function fromJsonString(string $jsonString):JsonObject {
-		$json = json_decode($jsonString);
+		$json = json_decode($jsonString, depth: $this->depth);
 		if(is_null($json)) {
 // It's completely reasonable to have a null value here, so we need to check the
 // error code before throwing an exception.
@@ -26,7 +31,7 @@ public function fromJsonString(string $jsonString):JsonObject {
 	}
 
 	/**
-	 * @param object|array|string|int|float|bool|null $jsonDecoded
+	 * @param object|array<mixed>|string|int|float|bool|null $jsonDecoded
 	 */
 	public function fromJsonDecoded(
 		object|array|string|int|float|bool|null $jsonDecoded
diff --git a/test/phpunit/JsonObjectBuilderTest.php b/test/phpunit/JsonObjectBuilderTest.php
index 41027a8..b323cdb 100644
--- a/test/phpunit/JsonObjectBuilderTest.php
+++ b/test/phpunit/JsonObjectBuilderTest.php
@@ -194,4 +194,25 @@ public function testFromJson_illegalCharacters() {
 		self::expectExceptionMessage("Error decoding JSON: Malformed UTF-8 characters, possibly incorrectly encoded");
 		$sut->fromJsonString($jsonString);
 	}
+
+	public function testFromJson_depth() {
+		$jsonString = <<<JSON
+		{
+			"name": "Greg",
+			"address": {
+				"home": {
+					"addressId": 105
+				},
+				"work": {
+					"addressId": 210
+				}
+			}
+		}
+		JSON;
+
+		$sut = new JsonObjectBuilder(3);
+		self::expectException(JsonDecodeException::class);
+		self::expectExceptionMessage("Error decoding JSON: Maximum stack depth exceeded");
+		$sut->fromJsonString($jsonString);
+	}
 }