diff --git a/ci/composer.json b/ci/composer.json
index 14a099d5..207b2eab 100644
--- a/ci/composer.json
+++ b/ci/composer.json
@@ -1,5 +1,5 @@
 {
     "require": {
-        "vimeo/psalm": "^3.6"
+        "vimeo/psalm": "^3.8.5"
     }
 }
diff --git a/psalm.xml b/psalm.xml
index 44d37aab..ac9d4db9 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -4,6 +4,7 @@
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns="https://getpsalm.org/schema/config"
     xsi:schemaLocation="https://getpsalm.org/schema/config ci/vendor/vimeo/psalm/config.xsd"
+    phpVersion="7.3"
 >
     <projectFiles>
         <directory name="tests/static-analysis" />