diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2317d99..5d41a66 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+### Changed
+- Updated Psalm requirements to `^4.2`
+
 ## [1.1.0] - 2020-01-23
 ### Added
 - Added command `list-owners` that lists all owners specified in the CODEOWNERS file
diff --git a/composer.json b/composer.json
index 74a871e..be07c39 100755
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     },
     "require-dev": {
         "squizlabs/php_codesniffer": "^3.5",
-        "vimeo/psalm": "^3.8",
+        "vimeo/psalm": "^4.2",
         "phpunit/phpunit": "^8.5",
         "mikey179/vfsstream": "^1.6"
     }
diff --git a/psalm.xml b/psalm.xml
index 42f355b..7da42dd 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -34,7 +34,6 @@
         <MissingReturnType errorLevel="info" />
         <MissingPropertyType errorLevel="info" />
         <InvalidDocblock errorLevel="info" />
-        <MisplacedRequiredParam errorLevel="info" />
 
         <PropertyNotSetInConstructor errorLevel="info" />
         <MissingConstructor errorLevel="info" />