diff --git a/CHANGELOG.md b/CHANGELOG.md
index 034fe5a..3aa93c7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+1.0.2
+=====
+
+* (improvement) Add support for Symfony v8.
+
+
 1.0.1
 =====
 
diff --git a/composer.json b/composer.json
index bc077b5..8c08895 100644
--- a/composer.json
+++ b/composer.json
@@ -14,15 +14,15 @@
 		"php": ">= 8.4",
 		"ext-intl": "*",
 		"21torr/bundle-helpers": "^2.3",
-		"symfony/dependency-injection": "^7.3",
-		"symfony/http-kernel": "^7.3",
-		"symfony/string": "^7.3"
+		"symfony/dependency-injection": "^7.3 || ^8.0",
+		"symfony/http-kernel": "^7.3 || ^8.0",
+		"symfony/string": "^7.3 || ^8.0"
 	},
 	"require-dev": {
-		"21torr/janus": "^1.4.0",
-		"bamarni/composer-bin-plugin": "^1.8",
+		"21torr/janus": "^2.0.3",
+		"bamarni/composer-bin-plugin": "^1.8.2",
 		"roave/security-advisories": "dev-latest",
-		"symfony/phpunit-bridge": "^7.2"
+		"symfony/phpunit-bridge": "^8.0"
 	},
 	"autoload": {
 		"psr-4": {
@@ -36,6 +36,7 @@
 	},
 	"config": {
 		"allow-plugins": {
+			"21torr/janus": true,
 			"bamarni/composer-bin-plugin": true
 		},
 		"sort-packages": true
@@ -53,15 +54,15 @@
 	"scripts": {
 		"fix-lint": [
 			"@composer bin c-norm normalize \"$(pwd)/composer.json\" --indent-style tab --indent-size 1 --ansi",
-			"vendor-bin/cs-fixer/vendor/bin/php-cs-fixer fix --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --no-interaction --ansi"
+			"vendor-bin/cs-fixer/vendor/bin/php-cs-fixer fix --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --allow-unsupported-php-version=yes --no-interaction --ansi"
 		],
 		"lint": [
 			"@composer bin c-norm normalize \"$(pwd)/composer.json\" --indent-style tab --indent-size 1 --dry-run --ansi",
-			"vendor-bin/cs-fixer/vendor/bin/php-cs-fixer check --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --no-interaction --ansi"
+			"vendor-bin/cs-fixer/vendor/bin/php-cs-fixer check --diff --config vendor-bin/cs-fixer/vendor/21torr/php-cs-fixer/.php-cs-fixer.dist.php --allow-unsupported-php-version=yes --no-interaction --ansi"
 		],
 		"test": [
 			"simple-phpunit",
 			"vendor-bin/phpstan/vendor/bin/phpstan analyze -c phpstan.neon . --ansi -v"
 		]
 	}
-}
+}
\ No newline at end of file
diff --git a/phpstan.neon b/phpstan.neon
index c97c69f..c249bed 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,8 +1,19 @@
 includes:
 	- vendor/21torr/janus/phpstan/lib.neon
 
+parameters:
+
 # If you use simple-phpunit, you need to uncomment the following line.
 # Always make sure to first run simple-phpunit and then PHPStan.
-parameters:
 	bootstrapFiles:
 		- vendor/bin/.phpunit/phpunit/vendor/autoload.php
+
+# These are temporarily copied here, as normally they should be in the lib.neon of janus.
+# However, due to a bug in PHPStan, this currently doesn't work (https://github.com/phpstan/phpstan/issues/12844)
+	excludePaths:
+		analyse:
+			- vendor
+		analyseAndScan:
+			- node_modules (?)
+			- var (?)
+			- vendor-bin
diff --git a/src/SnailBundle.php b/src/SnailBundle.php
index b121a80..6166b56 100644
--- a/src/SnailBundle.php
+++ b/src/SnailBundle.php
@@ -13,7 +13,7 @@ final class SnailBundle extends Bundle
 	/**
 	 * @inheritDoc
 	 */
-	public function getContainerExtension () : ?ExtensionInterface
+	public function getContainerExtension () : ExtensionInterface
 	{
 		return new BundleExtension($this);
 	}
diff --git a/vendor-bin/c-norm/composer.json b/vendor-bin/c-norm/composer.json
index 29d96fe..43031c1 100644
--- a/vendor-bin/c-norm/composer.json
+++ b/vendor-bin/c-norm/composer.json
@@ -1,6 +1,6 @@
 {
 	"require-dev": {
-		"ergebnis/composer-normalize": "^2.42",
+		"ergebnis/composer-normalize": "^2.47",
 		"roave/security-advisories": "dev-latest"
 	},
 	"config": {
diff --git a/vendor-bin/cs-fixer/composer.json b/vendor-bin/cs-fixer/composer.json
index ceadfce..42e20ab 100644
--- a/vendor-bin/cs-fixer/composer.json
+++ b/vendor-bin/cs-fixer/composer.json
@@ -1,6 +1,6 @@
 {
 	"require-dev": {
-		"21torr/php-cs-fixer": "^1.1.1",
+		"21torr/php-cs-fixer": "^1.1.5",
 		"roave/security-advisories": "dev-latest"
 	}
 }
diff --git a/vendor-bin/phpstan/composer.json b/vendor-bin/phpstan/composer.json
index cf165ff..4eb9387 100644
--- a/vendor-bin/phpstan/composer.json
+++ b/vendor-bin/phpstan/composer.json
@@ -3,14 +3,14 @@
 		"php": "^8.3"
 	},
 	"require-dev": {
-		"phpstan/extension-installer": "^1.3.1",
-		"phpstan/phpstan": "^1.11",
-		"phpstan/phpstan-deprecation-rules": "^1.2",
-		"phpstan/phpstan-doctrine": "^1.4",
-		"phpstan/phpstan-phpunit": "^1.4",
-		"phpstan/phpstan-symfony": "^1.4",
+		"phpstan/extension-installer": "^1.4.2",
+		"phpstan/phpstan": "^2.1.11",
+		"phpstan/phpstan-deprecation-rules": "^2.0.1",
+		"phpstan/phpstan-doctrine": "^2.0.2",
+		"phpstan/phpstan-phpunit": "^2.0.6",
+		"phpstan/phpstan-symfony": "^2.0.4",
 		"roave/security-advisories": "dev-latest",
-		"staabm/phpstan-todo-by": "^0.1.25"
+		"staabm/phpstan-todo-by": "^0.2"
 	},
 	"config": {
 		"sort-packages": true,