diff --git a/package.json b/package.json
index bfe81f4c..4ce8e379 100644
--- a/package.json
+++ b/package.json
@@ -253,7 +253,7 @@
     "sh-syntax": "0.4.2",
     "trash-cli": "6.0.0",
     "ts-dedent": "2.2.0",
-    "typescript": "5.7.2",
+    "typescript": "5.9.3",
     "typescript-eslint": "8.21.0",
     "unified": "11.0.5",
     "vfile": "6.0.3",
diff --git a/yarn.lock b/yarn.lock
index 27e6bd3f..57098e65 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1936,7 +1936,7 @@ __metadata:
     strip-json-comments: "npm:5.0.1"
     trash-cli: "npm:6.0.0"
     ts-dedent: "npm:2.2.0"
-    typescript: "npm:5.7.2"
+    typescript: "npm:5.9.3"
     typescript-eslint: "npm:8.21.0"
     unified: "npm:11.0.5"
     vfile: "npm:6.0.3"
@@ -11682,13 +11682,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:5.7.2":
-  version: 5.7.2
-  resolution: "typescript@npm:5.7.2"
+"typescript@npm:5.9.3":
+  version: 5.9.3
+  resolution: "typescript@npm:5.9.3"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 10/4caa3904df69db9d4a8bedc31bafc1e19ffb7b24fbde2997a1633ae1398d0de5bdbf8daf602ccf3b23faddf1aeeb9b795223a2ed9c9a4fdcaf07bfde114a401a
+  checksum: 10/c089d9d3da2729fd4ac517f9b0e0485914c4b3c26f80dc0cffcb5de1719a17951e92425d55db59515c1a7ddab65808466debb864d0d56dcf43f27007d0709594
   languageName: node
   linkType: hard
 
@@ -11702,13 +11702,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@npm%3A5.7.2#optional!builtin<compat/typescript>":
-  version: 5.7.2
-  resolution: "typescript@patch:typescript@npm%3A5.7.2#optional!builtin<compat/typescript>::version=5.7.2&hash=5786d5"
+"typescript@patch:typescript@npm%3A5.9.3#optional!builtin<compat/typescript>":
+  version: 5.9.3
+  resolution: "typescript@patch:typescript@npm%3A5.9.3#optional!builtin<compat/typescript>::version=5.9.3&hash=5786d5"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 10/d75ca10141afc64fd3474b41a8b082b640555bed388d237558aed64e5827ddadb48f90932c7f4205883f18f5bcab8b6a739a2cfac95855604b0dfeb34bc2f3eb
+  checksum: 10/696e1b017bc2635f4e0c94eb4435357701008e2f272f553d06e35b494b8ddc60aa221145e286c28ace0c89ee32827a28c2040e3a69bdc108b1a5dc8fb40b72e3
   languageName: node
   linkType: hard