diff --git a/package.json b/package.json
index 27dc320..368d7f0 100644
--- a/package.json
+++ b/package.json
@@ -91,7 +91,7 @@
 		"skills-npm": "^1.1.1",
 		"type-fest": "^5.6.0",
 		"typescript": "^6.0.3",
-		"typescript4": "npm:typescript@^4.5.5",
+		"typescript4": "npm:typescript@^6.0.3",
 		"typescript5": "npm:typescript@^5.9.3",
 		"typescript6": "npm:typescript@^6.0.3",
 		"unplugin-dts": "1.0.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c3ba70c..ffaaa44 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -88,8 +88,8 @@ importers:
         specifier: ^6.0.3
         version: 6.0.3
       typescript4:
-        specifier: npm:typescript@^4.5.5
-        version: typescript@4.9.5
+        specifier: npm:typescript@^6.0.3
+        version: typescript@6.0.3
       typescript5:
         specifier: npm:typescript@^5.9.3
         version: typescript@5.9.3
@@ -3057,11 +3057,6 @@ packages:
     resolution: {integrity: sha512-3KS2b+kL7fsuk/eJZ7EQdnEmQoaho/r6KUef7hxvltNA5DR8NAUM+8wJMbJyZ4G9/7i3v5zPBIMN5aybAh2/Jg==}
     engines: {node: '>= 0.4'}
 
-  typescript@4.9.5:
-    resolution: {integrity: sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==}
-    engines: {node: '>=4.2.0'}
-    hasBin: true
-
   typescript@5.9.3:
     resolution: {integrity: sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==}
     engines: {node: '>=14.17'}
@@ -6593,8 +6588,6 @@ snapshots:
       possible-typed-array-names: 1.1.0
       reflect.getprototypeof: 1.0.10
 
-  typescript@4.9.5: {}
-
   typescript@5.9.3: {}
 
   typescript@6.0.3: {}