diff --git a/package-lock.json b/package-lock.json
index 4246015..d827d44 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,7 +33,7 @@
         "lint-staged": "^16.2.4",
         "prettier": "^3.6.2",
         "ts-jest": "^29.4.5",
-        "typescript": "~5.8.3"
+        "typescript": "~5.9.3"
       }
     },
     "node_modules/@acuminous/bitsyntax": {
@@ -10979,9 +10979,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.8.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "version": "5.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
+      "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "license": "Apache-2.0",
       "bin": {
         "tsc": "bin/tsc",
diff --git a/package.json b/package.json
index f90f245..b377014 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
     "lint-staged": "^16.2.4",
     "prettier": "^3.6.2",
     "ts-jest": "^29.4.5",
-    "typescript": "~5.8.3"
+    "typescript": "~5.9.3"
   },
   "lint-staged": {
     "*.ts": [