diff --git a/psalm.xml b/psalm.xml
index 7ef84054074..d55c9a0552a 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -8,6 +8,7 @@
     errorBaseline="build/psalm-baseline.xml"
 	findUnusedBaselineEntry="false"
 	findUnusedCode="false"
+	phpVersion="8.1"
 >
 	<plugins>
 		<plugin filename="build/psalm/AppFrameworkTainter.php" />