diff --git a/Swivl/ruleset.xml b/Swivl/ruleset.xml
index a324a17..5c96ac7 100644
--- a/Swivl/ruleset.xml
+++ b/Swivl/ruleset.xml
@@ -69,8 +69,6 @@
         </properties>
     </rule>
 
-    <rule ref="Generic.Functions.CallTimePassByReference"/>
-
     <rule ref="Generic.Metrics.NestingLevel">
         <properties>
             <property name="nestingLevel" value="6"/>
@@ -271,7 +269,6 @@
             <property name="spacingAfterLast" value="0"/>
         </properties>
     </rule>
-    <rule ref="Squiz.WhiteSpace.LanguageConstructSpacing"/>
     <rule ref="Squiz.WhiteSpace.LogicalOperatorSpacing"/>
     <rule ref="Squiz.WhiteSpace.MemberVarSpacing">
         <properties>
diff --git a/Swivl/slevomat.xml b/Swivl/slevomat.xml
index 0caa8b7..b1e0d1f 100644
--- a/Swivl/slevomat.xml
+++ b/Swivl/slevomat.xml
@@ -295,7 +295,7 @@
             <property name="spacesCountBeforeColon" value="0"/>
         </properties>
     </rule>
-    <rule ref="SlevomatCodingStandard.TypeHints.UnionTypeHintFormat">
+    <rule ref="SlevomatCodingStandard.TypeHints.DNFTypeHintFormat">
         <properties>
             <property name="withSpaces" value="no"/>
             <property name="nullPosition" value="last"/>
diff --git a/composer.json b/composer.json
index 479f75f..46b93ef 100644
--- a/composer.json
+++ b/composer.json
@@ -14,8 +14,8 @@
         }
     ],
     "require": {
-        "php": ">=7.1",
-        "squizlabs/php_codesniffer": "^3.6"
+        "php": ">=7.2",
+        "squizlabs/php_codesniffer": "^4.0"
     },
     "conflict": {
         "doctrine/orm": "<2.9"