diff --git a/.travis.yml b/.travis.yml
index 050bab9..f4cc4b3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -27,18 +27,9 @@ jobs:
         - travis_retry php phive.phar --no-progress install --trust-gpg-keys E82B2FB314E9906E php-coveralls/php-coveralls && ./tools/php-coveralls --verbose
         - travis_retry wget --no-verbose https://scrutinizer-ci.com/ocular.phar && php ocular.phar code-coverage:upload --format=php-clover build/logs/clover.xml
 
-    - stage: lint
-      php: 7.1
-      before_script:
-        - travis_retry php phive.phar --no-progress install --trust-gpg-keys 8E730BA25823D8B5 phpstan
-      script:
-        - ./tools/phpstan analyse src --level max --configuration phpstan.neon
-        - composer create-project symplify/easy-coding-standard temp/ecs ^3 && temp/ecs/bin/ecs check src tests
-
 cache:
   directories:
   - $HOME/.composer/cache/files
-  - $HOME/.phive
 
 notifications:
   irc: "irc.freenode.org#phpdocumentor"
diff --git a/easy-coding-standard.neon b/easy-coding-standard.neon
deleted file mode 100644
index 8260402..0000000
--- a/easy-coding-standard.neon
+++ /dev/null
@@ -1,26 +0,0 @@
-includes:
-    - temp/ecs/config/clean-code.neon
-    - temp/ecs/config/psr2.neon
-    - temp/ecs/config/common.neon
-
-parameters:
-    exclude_checkers:
-        # from temp/ecs/config/common.neon
-        - PhpCsFixer\Fixer\ClassNotation\OrderedClassElementsFixer
-        - PhpCsFixer\Fixer\PhpUnit\PhpUnitStrictFixer
-        - PhpCsFixer\Fixer\ControlStructure\YodaStyleFixer
-        # from temp/ecs/config/spaces.neon
-        - PhpCsFixer\Fixer\Operator\NotOperatorWithSuccessorSpaceFixer
-
-    skip:
-        SlevomatCodingStandard\Sniffs\Classes\UnusedPrivateElementsSniff:
-            # WIP code
-            - src/DocBlock/StandardTagFactory.php
-        PHP_CodeSniffer\Standards\Generic\Sniffs\CodeAnalysis\EmptyStatementSniff:
-            # WIP code
-            - src/DocBlock/StandardTagFactory.php
-        PHP_CodeSniffer\Standards\Squiz\Sniffs\Classes\ValidClassNameSniff:
-            - src/DocBlock/Tags/Return_.php
-            - src/DocBlock/Tags/Var_.php
-        PHP_CodeSniffer\Standards\Generic\Sniffs\NamingConventions\CamelCapsFunctionNameSniff:
-            - */tests/**
diff --git a/phive.xml b/phive.xml
deleted file mode 100644
index 24b708d..0000000
--- a/phive.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<phive xmlns="https://phar.io/phive">
-  <phar name="phpstan" version="^0.9.1" installed="0.9.1" location="./tools/phpstan"/>
-  <phar name="phpunit" version="^6.5.5" installed="6.5.5" location="./tools/phpunit"/>
-</phive>
diff --git a/psalm.xml b/psalm.xml
new file mode 100644
index 0000000..9fedb8a
--- /dev/null
+++ b/psalm.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0"?>
+<psalm
+    totallyTyped="false"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config file:///composer/vendor/vimeo/psalm/config.xsd"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+
+    <issueHandlers>
+        <LessSpecificReturnType errorLevel="info" />
+    </issueHandlers>
+</psalm>