diff --git a/phpstan-baseline-7x.neon b/phpstan-baseline-7x.neon
index 6da35255..95668ced 100644
--- a/phpstan-baseline-7x.neon
+++ b/phpstan-baseline-7x.neon
@@ -80,11 +80,6 @@ parameters:
 			count: 1
 			path: library/Icingadb/Util/PerfData.php
 
-		-
-			message: "#^Method Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:render\\(\\) should return string but returns string\\|false\\|null\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
 		-
 			message: "#^Parameter \\#1 \\$str of function trim expects string, string\\|null given\\.$#"
 			count: 1
@@ -95,11 +90,6 @@ parameters:
 			count: 1
 			path: library/Icingadb/Util/PluginOutput.php
 
-		-
-			message: "#^Property Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:\\$renderedOutput \\(string\\) does not accept string\\|false\\|null\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
 		-
 			message: "#^Parameter \\#1 \\$str of function trim expects string, mixed given\\.$#"
 			count: 1
diff --git a/phpstan-baseline-8x.neon b/phpstan-baseline-8x.neon
index b5b85f7f..d27ed795 100644
--- a/phpstan-baseline-8x.neon
+++ b/phpstan-baseline-8x.neon
@@ -80,21 +80,11 @@ parameters:
 			count: 1
 			path: library/Icingadb/Util/PerfData.php
 
-		-
-			message: "#^Method Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:render\\(\\) should return string but returns string\\|null\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
 		-
 			message: "#^Parameter \\#1 \\$string of function trim expects string, string\\|null given\\.$#"
 			count: 1
 			path: library/Icingadb/Util/PluginOutput.php
 
-		-
-			message: "#^Property Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:\\$renderedOutput \\(string\\) does not accept string\\|null\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
 		-
 			message: "#^Parameter \\#1 \\$string of function trim expects string, mixed given\\.$#"
 			count: 1
diff --git a/phpstan-baseline-standard.neon b/phpstan-baseline-standard.neon
index c974c5e1..cc744dfe 100644
--- a/phpstan-baseline-standard.neon
+++ b/phpstan-baseline-standard.neon
@@ -4936,17 +4936,7 @@ parameters:
 			path: library/Icingadb/Util/PluginOutput.php
 
 		-
-			message: "#^Cannot call method insertBefore\\(\\) on DOMNode\\|null\\.$#"
-			count: 3
-			path: library/Icingadb/Util/PluginOutput.php
-
-		-
-			message: "#^Cannot call method removeChild\\(\\) on DOMNode\\|null\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
-		-
-			message: "#^Parameter \\#1 \\$html of method Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:processHtml\\(\\) expects string, string\\|null given\\.$#"
+			message: "#^Method Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:render\\(\\) should return string but returns string\\|null\\.$#"
 			count: 1
 			path: library/Icingadb/Util/PluginOutput.php
 
@@ -4956,22 +4946,7 @@ parameters:
 			path: library/Icingadb/Util/PluginOutput.php
 
 		-
-			message: "#^Parameter \\#1 \\$string of function strlen expects string, string\\|null given\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
-		-
-			message: "#^Parameter \\#1 \\$string of function substr expects string, string\\|false given\\.$#"
-			count: 1
-			path: library/Icingadb/Util/PluginOutput.php
-
-		-
-			message: "#^Parameter \\#1 \\$string of function substr expects string, string\\|null given\\.$#"
-			count: 3
-			path: library/Icingadb/Util/PluginOutput.php
-
-		-
-			message: "#^Parameter \\#2 \\$subject of function preg_match expects string, string\\|null given\\.$#"
+			message: "#^Property Icinga\\\\Module\\\\Icingadb\\\\Util\\\\PluginOutput\\:\\:\\$renderedOutput \\(string\\) does not accept string\\|null\\.$#"
 			count: 1
 			path: library/Icingadb/Util/PluginOutput.php
 
@@ -6635,6 +6610,11 @@ parameters:
 			count: 1
 			path: library/Icingadb/Widget/Detail/UserDetail.php
 
+		-
+			message: "#^Cannot access property \\$display_name on mixed\\.$#"
+			count: 1
+			path: library/Icingadb/Widget/Detail/UserDetail.php
+
 		-
 			message: "#^Cannot call method getModel\\(\\) on mixed\\.$#"
 			count: 1