diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 0e7caff1..a2b7f6f8 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<files psalm-version="4.9.2@00c062267d6e3229d91a1939992987e2d46f2393">
+<files psalm-version="4.16.1@aa7e400908833b10c0333861f86cd48c510b60eb">
   <file src="src/CallableNormalizer.php">
     <MixedInferredReturnType occurrences="1">
       <code>Json</code>
@@ -14,9 +14,6 @@
     </ImplicitToStringCast>
   </file>
   <file src="src/Json.php">
-    <DocblockTypeContradiction occurrences="1">
-      <code>null === $this-&gt;format</code>
-    </DocblockTypeContradiction>
     <MissingParamType occurrences="1">
       <code>$decoded</code>
     </MissingParamType>
@@ -24,9 +21,6 @@
       <code>$decoded</code>
       <code>$this-&gt;decoded</code>
     </MixedAssignment>
-    <PropertyNotSetInConstructor occurrences="1">
-      <code>$format</code>
-    </PropertyNotSetInConstructor>
   </file>
   <file src="src/SchemaNormalizer.php">
     <MissingParamType occurrences="1">
diff --git a/src/Json.php b/src/Json.php
index 5fe6cf34..ad2205c5 100644
--- a/src/Json.php
+++ b/src/Json.php
@@ -26,7 +26,7 @@ final class Json
     private $decoded;
 
     /**
-     * @var Format\Format
+     * @var null|Format\Format
      */
     private $format;