diff --git a/composer.json b/composer.json
index f97cd7c3428..0c6ce740986 100644
--- a/composer.json
+++ b/composer.json
@@ -173,8 +173,8 @@
     "codeception/codeception": "^4.1.12",
     "codeception/module-symfony": "^1.6.0",
     "codeception/phpunit-wrapper": "^9",
-    "phpstan/phpstan": "^1.9.3",
-    "phpstan/phpstan-symfony": "^1.2.14",
+    "phpstan/phpstan": "^1.9.5",
+    "phpstan/phpstan-symfony": "^1.2.19",
     "phpunit/phpunit": "^9.3",
     "spiritix/php-chrome-html2pdf": "^1.6",
     "elasticsearch/elasticsearch": "^7.11",
diff --git a/phpstan-baseline.neon b/phpstan-baseline.neon
index 8d049a96237..ff3413d09ee 100644
--- a/phpstan-baseline.neon
+++ b/phpstan-baseline.neon
@@ -195,11 +195,6 @@ parameters:
 			count: 1
 			path: lib/Tool/Serialize.php
 
-		-
-			message: "#^Parameter \\#1 \\$separator of function explode expects non\\-empty\\-string, string given\\.$#"
-			count: 1
-			path: lib/Tool/Text/Csv.php
-
 		-
 			message: "#^Negated boolean expression is always true\\.$#"
 			count: 1