diff --git a/.travis.yml b/.travis.yml
index a669b13..dec62d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,16 +4,20 @@ php:
     - 5.6
     - 7.0
     - 7.1
-    - 7.2
-    - 7.3
-    - nightly
 
 matrix:
     include:
         - php: 7.2
-          env: CS_FIXER=run
+          env: SYMFONY_PHPUNIT_VERSION=7.5
+        - php: 7.3
+          env: SYMFONY_PHPUNIT_VERSION=7.5 CS_FIXER=run
+        - php: 7.4
+          env: SYMFONY_PHPUNIT_VERSION=7.5 CS_FIXER=run
+        - php: nightly
+          env: SYMFONY_PHPUNIT_VERSION=7.5 CS_FIXER=run
     fast_finish: true
     allow_failures:
+        - php: 7.4
         - php: nightly
 
 # cache vendor dirs
@@ -36,6 +40,9 @@ script:
     - mkdir -p build/logs
     - php vendor/bin/simple-phpunit -v --coverage-clover build/logs/clover.xml
     - if [ "$CS_FIXER" = "run" ]; then php vendor/bin/php-cs-fixer fix --verbose --dry-run ; fi;
+    # only install phpstan when we need it
+    - if [ "$CS_FIXER" = "run" ]; then composer require phpstan/phpstan --no-progress --no-suggest ; fi;
+    - if [ "$CS_FIXER" = "run" ]; then composer require phpstan/phpstan-phpunit --no-progress --no-suggest ; fi;
     - if [ "$CS_FIXER" = "run" ]; then php vendor/bin/phpstan analyse src tests --no-progress --level 1 ; fi;
 
 after_script:
diff --git a/phpstan.neon b/phpstan.neon
index 27190e1..5cc2547 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -5,4 +5,4 @@ includes:
 parameters:
     # https://github.com/phpstan/phpstan/issues/694#issuecomment-350724288
     autoload_files:
-        - vendor/bin/.phpunit/phpunit-7.4/vendor/autoload.php
+        - vendor/bin/.phpunit/phpunit-7.5-0/vendor/autoload.php
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index e45540e..ae28202 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -10,6 +10,10 @@
     bootstrap="vendor/autoload.php"
     >
 
+    <php>
+        <env name="SYMFONY_PHPUNIT_VERSION" value="7.5" />
+    </php>
+
     <testsuites>
         <testsuite name="Readability Test Suite">
             <directory>./tests/</directory>
diff --git a/src/Readability.php b/src/Readability.php
index ff262be..cf81ef6 100644
--- a/src/Readability.php
+++ b/src/Readability.php
@@ -307,8 +307,6 @@ public function init()
 
     /**
      * Run any post-process modifications to article content as necessary.
-     *
-     * @param \DOMElement $articleContent
      */
     public function postProcessContent(\DOMElement $articleContent)
     {
@@ -321,8 +319,6 @@ public function postProcessContent(\DOMElement $articleContent)
      * For easier reading, convert this document to have footnotes at the bottom rather than inline links.
      *
      * @see http://www.roughtype.com/archives/2010/05/experiments_in.php
-     *
-     * @param \DOMElement $articleContent
      */
     public function addFootnotes(\DOMElement $articleContent)
     {
@@ -385,8 +381,6 @@ public function addFootnotes(\DOMElement $articleContent)
     /**
      * Prepare the article node for display. Clean out any inline styles,
      * iframes, forms, strip extraneous <p> tags, etc.
-     *
-     * @param \DOMNode $articleContent
      */
     public function prepArticle(\DOMNode $articleContent)
     {
@@ -558,8 +552,7 @@ public function getWordCount($text)
      * This is the amount of text that is inside a link divided by the total text in the node.
      * Can exclude external references to differentiate between simple text and menus/infoblocks.
      *
-     * @param \DOMElement $e
-     * @param bool        $excludeExternal
+     * @param bool $excludeExternal
      *
      * @return int
      */
@@ -586,8 +579,6 @@ public function getLinkDensity(\DOMElement $e, $excludeExternal = false)
     /**
      * Get an element relative weight.
      *
-     * @param \DOMElement $e
-     *
      * @return int
      */
     public function getWeight(\DOMElement $e)
@@ -607,8 +598,6 @@ public function getWeight(\DOMElement $e)
 
     /**
      * Remove extraneous break tags from a node.
-     *
-     * @param \DOMElement $node
      */
     public function killBreaks(\DOMElement $node)
     {
@@ -623,8 +612,7 @@ public function killBreaks(\DOMElement $node)
      *
      * Updated 2012-09-18 to preserve youtube/vimeo iframes
      *
-     * @param \DOMElement $e
-     * @param string      $tag
+     * @param string $tag
      */
     public function clean(\DOMElement $e, $tag)
     {
@@ -659,8 +647,7 @@ public function clean(\DOMElement $e, $tag)
      * "Fishy" is an algorithm based on content length, classnames,
      * link density, number of images & embeds, etc.
      *
-     * @param \DOMElement $e
-     * @param string      $tag
+     * @param string $tag
      */
     public function cleanConditionally(\DOMElement $e, $tag)
     {
@@ -772,8 +759,6 @@ public function cleanConditionally(\DOMElement $e, $tag)
 
     /**
      * Clean out spurious headers from an Element. Checks things like classnames and link density.
-     *
-     * @param \DOMElement $e
      */
     public function cleanHeaders(\DOMElement $e)
     {
@@ -915,8 +900,6 @@ protected function prepDocument()
     /**
      * Initialize a node with the readability object. Also checks the
      * className/id for special names to add to its score.
-     *
-     * @param \DOMElement $node
      */
     protected function initializeNode(\DOMElement $node)
     {
@@ -1346,8 +1329,7 @@ protected function grabArticle(\DOMElement $page = null)
      * Get an element weight by attribute.
      * Uses regular expressions to tell if this element looks good or bad.
      *
-     * @param \DOMElement $element
-     * @param string      $attribute
+     * @param string $attribute
      *
      * @return int
      */