diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 69a975dd..36aff9e0 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -1,14 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <files psalm-version="4.16.1@aa7e400908833b10c0333861f86cd48c510b60eb">
   <file src="src/Command/NormalizeCommand.php">
-    <MissingPropertyType occurrences="4">
-      <code>$differ</code>
-      <code>$factory</code>
-      <code>$formatter</code>
-      <code>$normalizer</code>
-    </MissingPropertyType>
-    <MixedArgument occurrences="11">
-      <code>$composer-&gt;getPackage()-&gt;getExtra()</code>
+    <MixedArgument occurrences="9">
+      <code>$composerFile</code>
       <code>$composerFile</code>
       <code>$composerFile</code>
       <code>$composerFile</code>
@@ -17,28 +11,10 @@
       <code>$composerFile</code>
       <code>$composerFile</code>
       <code>$composerFile</code>
-      <code>$diff</code>
-      <code>$formatted-&gt;encoded()</code>
     </MixedArgument>
-    <MixedAssignment occurrences="5">
-      <code>$composer</code>
+    <MixedAssignment occurrences="1">
       <code>$composerFile</code>
-      <code>$diff</code>
-      <code>$formatted</code>
-      <code>$normalized</code>
     </MixedAssignment>
-    <MixedMethodCall occurrences="10">
-      <code>createComposer</code>
-      <code>diff</code>
-      <code>encoded</code>
-      <code>encoded</code>
-      <code>encoded</code>
-      <code>format</code>
-      <code>getExtra</code>
-      <code>getLocker</code>
-      <code>getPackage</code>
-      <code>normalize</code>
-    </MixedMethodCall>
   </file>
   <file src="test/Integration/Command/NormalizeCommand/AbstractTestCase.php">
     <MixedArrayAccess occurrences="1">
diff --git a/src/Command/NormalizeCommand.php b/src/Command/NormalizeCommand.php
index b937ba9b..1acd62eb 100644
--- a/src/Command/NormalizeCommand.php
+++ b/src/Command/NormalizeCommand.php
@@ -29,10 +29,10 @@
  */
 final class NormalizeCommand extends Command\BaseCommand
 {
-    private $factory;
-    private $normalizer;
-    private $formatter;
-    private $differ;
+    private Factory $factory;
+    private Normalizer\NormalizerInterface $normalizer;
+    private Normalizer\Format\FormatterInterface $formatter;
+    private Diff\Differ $differ;
 
     public function __construct(
         Factory $factory,