diff --git a/composer.json b/composer.json
index 70928671aa6e3..e20f4c7806b6e 100644
--- a/composer.json
+++ b/composer.json
@@ -52,7 +52,7 @@
 		"squizlabs/php_codesniffer": "3.13.5",
 		"wp-coding-standards/wpcs": "~3.4.1",
 		"phpcompatibility/phpcompatibility-wp": "~2.1.3",
-		"phpstan/phpstan": "2.3.4",
+		"phpstan/phpstan": "2.3.5",
 		"phpstan/phpstan-phpunit": "2.1.1",
 		"phpstan/phpstan-strict-rules": "2.1.1",
 		"yoast/phpunit-polyfills": "^1.1.0"
diff --git a/tests/phpstan/base.neon b/tests/phpstan/base.neon
index be98b5e1503cc..1c102ca47e7da 100644
--- a/tests/phpstan/base.neon
+++ b/tests/phpstan/base.neon
@@ -105,10 +105,10 @@ parameters:
 	# Cache is stored locally, so it's available for CI.
 	tmpDir: ../../.cache
 
-	# The Minimum PHP Version
+	# Supported PHP versions.
 	phpVersion:
 		min: 70400
-		max: 80500
+		max: 80600
 
 	# If it's not enforced by PHP we can't assume users are passing valid values.
 	treatPhpDocTypesAsCertain: false