diff --git a/composer.json b/composer.json
index 45775a02..79fb9e07 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,7 @@
     "psalm/plugin-phpunit": "~0.18.4",
     "rector/rector": "~0.18.13",
     "roave/backward-compatibility-check": "^8.6.0",
-    "vimeo/psalm": "^5.19.1"
+    "vimeo/psalm": "^5.20.0"
   },
   "autoload": {
     "psr-4": {
diff --git a/composer.lock b/composer.lock
index 6d9b58b5..6779a7a1 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "40a88eea2786982e0c5c5482a2226d52",
+    "content-hash": "4a3ac1a17a291b72fc43216030671199",
     "packages": [
         {
             "name": "ergebnis/json",
@@ -6970,16 +6970,16 @@
         },
         {
             "name": "vimeo/psalm",
-            "version": "5.19.1",
+            "version": "5.20.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vimeo/psalm.git",
-                "reference": "b9583493b08eb36259c0f6b746a787c4c9b3ac45"
+                "reference": "3f284e96c9d9be6fe6b15c79416e1d1903dcfef4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vimeo/psalm/zipball/b9583493b08eb36259c0f6b746a787c4c9b3ac45",
-                "reference": "b9583493b08eb36259c0f6b746a787c4c9b3ac45",
+                "url": "https://api.github.com/repos/vimeo/psalm/zipball/3f284e96c9d9be6fe6b15c79416e1d1903dcfef4",
+                "reference": "3f284e96c9d9be6fe6b15c79416e1d1903dcfef4",
                 "shasum": ""
             },
             "require": {
@@ -7076,7 +7076,7 @@
                 "issues": "https://github.com/vimeo/psalm/issues",
                 "source": "https://github.com/vimeo/psalm"
             },
-            "time": "2024-01-14T22:41:50+00:00"
+            "time": "2024-01-18T12:15:06+00:00"
         },
         {
             "name": "webmozart/assert",