diff --git a/extension.json b/extension.json
index 0603c107..272cba48 100644
--- a/extension.json
+++ b/extension.json
@@ -17,7 +17,7 @@
 	"descriptionmsg": "uls-desc",
 	"license-name": "GPL-2.0-or-later OR MIT",
 	"requires": {
-		"MediaWiki": ">= 1.38.0"
+		"MediaWiki": ">= 1.39.0"
 	},
 	"Hooks": {
 		"BeforePageDisplay": "main",