diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 40ac260..d904be7 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -10,6 +10,7 @@ on:
       - 'phpunit.xml.dist'
 
   push:
+    branches: [ 'master' ]
     paths-ignore:
       - 'docs/**'
       - 'README.md'
@@ -28,4 +29,12 @@ jobs:
       os: >-
         ['ubuntu-latest']
       php: >-
-        ['7.4', '8.0', '8.1']
+        ['8.1', '8.2', '8.3']
+  psalm74-80:
+    uses: yiisoft/actions/.github/workflows/psalm.yml@master
+    with:
+      psalm-config: psalm74-80.xml
+      os: >-
+        ['ubuntu-latest']
+      php: >-
+        ['7.4', '8.0']
diff --git a/composer.json b/composer.json
index 9d637bf..dac960d 100644
--- a/composer.json
+++ b/composer.json
@@ -42,7 +42,7 @@
         "rector/rector": "^1.0.0",
         "roave/infection-static-analysis-plugin": "^1.16",
         "spatie/phpunit-watcher": "^1.23",
-        "vimeo/psalm": "^4.30|^5.6",
+        "vimeo/psalm": "^4.30|^5.21",
         "yiisoft/di": "^1.1"
     },
     "autoload": {
diff --git a/psalm.xml b/psalm.xml
index 277e73d..b48c894 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -13,4 +13,8 @@
             <directory name="vendor" />
         </ignoreFiles>
     </projectFiles>
+    <issueHandlers>
+        <MixedAssignment errorLevel="suppress" />
+        <RiskyTruthyFalsyComparison errorLevel="suppress" />
+    </issueHandlers>
 </psalm>
diff --git a/psalm74-80.xml b/psalm74-80.xml
new file mode 100644
index 0000000..d091d59
--- /dev/null
+++ b/psalm74-80.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0"?>
+<psalm
+    errorLevel="1"
+    findUnusedBaselineEntry="true"
+    findUnusedCode="false"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns="https://getpsalm.org/schema/config"
+    xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+>
+    <projectFiles>
+        <directory name="src" />
+        <ignoreFiles>
+            <directory name="vendor" />
+        </ignoreFiles>
+    </projectFiles>
+    <issueHandlers>
+        <MixedAssignment errorLevel="suppress" />
+    </issueHandlers>
+</psalm>
diff --git a/src/CsrfMiddleware.php b/src/CsrfMiddleware.php
index 467712c..cffab6c 100644
--- a/src/CsrfMiddleware.php
+++ b/src/CsrfMiddleware.php
@@ -98,7 +98,6 @@ private function getTokenFromRequest(ServerRequestInterface $request): ?string
     {
         $parsedBody = $request->getParsedBody();
 
-        /** @var mixed $token */
         $token = $parsedBody[$this->parameterName] ?? null;
         if (empty($token)) {
             $headers = $request->getHeader($this->headerName);
diff --git a/src/Synchronizer/Storage/SessionCsrfTokenStorage.php b/src/Synchronizer/Storage/SessionCsrfTokenStorage.php
index db47458..d9ff131 100644
--- a/src/Synchronizer/Storage/SessionCsrfTokenStorage.php
+++ b/src/Synchronizer/Storage/SessionCsrfTokenStorage.php
@@ -33,7 +33,6 @@ public function __construct(SessionInterface $session, string $key = self::KEY)
 
     public function get(): ?string
     {
-        /** @var mixed $value */
         $value = $this->session->get($this->key);
         return is_string($value) ? $value : null;
     }