diff --git a/README.md b/README.md
index 3b44e9c3..caf830a8 100644
--- a/README.md
+++ b/README.md
@@ -29,9 +29,9 @@ Please feel free to submit PRs if you want to add support for more extensions!
 ### Core
 Name | Grade | Version | Last updated
 :--- | :--- | :--- | :---
-MediaWiki UI | A | 1.39.0 | 2023-06-29
-Codex | A | 0.1.1| 2022-12-01
-OOUI | A | 0.44.3 | 2023-05-29
+MediaWiki UI | A | 1.39.0 | 2023-07-04
+Codex | A | 0.1.1 | 2022-12-01
+OOUI | A | 0.44.3 | 2023-06-24
 
 ### Extensions
 Name | Grade | Version | Last updated
diff --git a/skin.json b/skin.json
index 6869bf34..f1d17798 100644
--- a/skin.json
+++ b/skin.json
@@ -502,6 +502,7 @@
 			"+mediawiki.ui.input": "skinStyles/mediawiki/ui/mediawiki.ui.input.less",
 			"+mediawiki.ui.icon": "skinStyles/mediawiki/ui/mediawiki.ui.icon.less",
 			"+mediawiki.diff.styles": "skinStyles/mediawiki/mediawiki.diff.styles.less",
+			"+mediawiki.filewarning": "skinStyles/mediawiki/mediawiki.filewarning.less",
 			"+mediawiki.htmlform.styles": "skinStyles/mediawiki/mediawiki.htmlform.styles.less",
 			"+mediawiki.htmlform.ooui.styles": "skinStyles/mediawiki/mediawiki.htmlform.ooui.styles.less",
 			"+mediawiki.legacy.shared": "skinStyles/mediawiki/mediawiki.legacy.shared.less",
diff --git a/skinStyles/mediawiki/mediawiki.filewarning.less b/skinStyles/mediawiki/mediawiki.filewarning.less
new file mode 100644
index 00000000..478a4d73
--- /dev/null
+++ b/skinStyles/mediawiki/mediawiki.filewarning.less
@@ -0,0 +1,29 @@
+/*
+ * Citizen
+ *
+ * SkinStyles for file warnings
+ * Module: mediawiki.filewarning
+ * Version: 1.39.0
+ *
+ * Date: 2023-07-04
+ */
+
+.mediawiki-filewarning {
+	.mediawiki-filewarning-header {
+		color: var( --color-base--emphasized );
+	}
+
+	.mediawiki-filewarning-main {
+		color: var( --color-base );
+	}
+
+	.mediawiki-filewarning-footer {
+		color: var( --color-base--subtle );
+	}
+}
+
+.mime-type {
+	&.has-warning {
+		color: var( --color-text-warning );
+	}
+}