diff --git a/package-lock.json b/package-lock.json
index d34031be..40f6d4db 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
 			"devDependencies": {
 				"@biomejs/biome": "1.9.4",
 				"@types/node": "22.15.29",
-				"tsdown": "0.12.5",
+				"tsdown": "0.12.6",
 				"typescript": "5.8.3"
 			}
 		},
@@ -961,9 +961,9 @@
 			}
 		},
 		"node_modules/tsdown": {
-			"version": "0.12.5",
-			"resolved": "https://registry.npmjs.org/tsdown/-/tsdown-0.12.5.tgz",
-			"integrity": "sha512-5tzqVakJOdIVJLBB6K1e7L4pPTkyLxArkidwsY1jd4P1/4GplYxeHGRmGz8evsXaPJW6IumdbDvIVnmWMnIy2A==",
+			"version": "0.12.6",
+			"resolved": "https://registry.npmjs.org/tsdown/-/tsdown-0.12.6.tgz",
+			"integrity": "sha512-NIqmptXCYc0iZzSGNpFtWATTDM5MyqDfV7bhgqfrw8KJlEFLI9zYyF4uFDheEvudTMNH5dkcQUJaklpmHsA37A==",
 			"dev": true,
 			"license": "MIT",
 			"dependencies": {
@@ -991,12 +991,16 @@
 				"url": "https://github.com/sponsors/sxzz"
 			},
 			"peerDependencies": {
+				"@arethetypeswrong/core": "^0.18.1",
 				"publint": "^0.3.0",
 				"typescript": "^5.0.0",
 				"unplugin-lightningcss": "^0.4.0",
 				"unplugin-unused": "^0.5.0"
 			},
 			"peerDependenciesMeta": {
+				"@arethetypeswrong/core": {
+					"optional": true
+				},
 				"publint": {
 					"optional": true
 				},
diff --git a/package.json b/package.json
index e7ac5db9..6a2673fd 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
 	"devDependencies": {
 		"@biomejs/biome": "1.9.4",
 		"@types/node": "22.15.29",
-		"tsdown": "0.12.5",
+		"tsdown": "0.12.6",
 		"typescript": "5.8.3"
 	},
 	"publishConfig": {