diff --git a/extension.json b/extension.json
index 91e503146..352347910 100644
--- a/extension.json
+++ b/extension.json
@@ -14,7 +14,7 @@
 	"license-name": "GPL-2.0-or-later",
 	"type": "parserhook",
 	"requires": {
-		"MediaWiki": ">= 1.39.0"
+		"MediaWiki": ">= 1.40.0"
 	},
 	"AutoloadNamespaces": {
 		"MediaWiki\\Extension\\Math\\": "src/"