diff --git a/composer.json b/composer.json
index 6ec87cd..accc095 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "phpstan/phpstan-strict-rules": "~0.12.2",
     "phpunit/phpunit": "^8.5.3",
     "psalm/plugin-phpunit": "~0.10.0",
-    "vimeo/psalm": "^3.11.0"
+    "vimeo/psalm": "^3.11.1"
   },
   "config": {
     "platform": {
diff --git a/composer.lock b/composer.lock
index c6da7a1..bc55623 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": "d20305f4c30e492194820d396715e13f",
+    "content-hash": "07bdc9b89674b8cd3176c94a923ab01b",
     "packages": [],
     "packages-dev": [
         {
@@ -4601,16 +4601,16 @@
         },
         {
             "name": "vimeo/psalm",
-            "version": "3.11.0",
+            "version": "3.11.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/vimeo/psalm.git",
-                "reference": "5bc9b095d1a6f1a2e0890353fc2c6cd7de62371d"
+                "reference": "8533b866ab1a46e5a69a4692ff57f10529dbfbeb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/vimeo/psalm/zipball/5bc9b095d1a6f1a2e0890353fc2c6cd7de62371d",
-                "reference": "5bc9b095d1a6f1a2e0890353fc2c6cd7de62371d",
+                "url": "https://api.github.com/repos/vimeo/psalm/zipball/8533b866ab1a46e5a69a4692ff57f10529dbfbeb",
+                "reference": "8533b866ab1a46e5a69a4692ff57f10529dbfbeb",
                 "shasum": ""
             },
             "require": {
@@ -4695,7 +4695,7 @@
                 "inspection",
                 "php"
             ],
-            "time": "2020-04-12T18:43:12+00:00"
+            "time": "2020-04-13T02:19:49+00:00"
         },
         {
             "name": "webmozart/assert",