diff --git a/package.json b/package.json
index 17d0637..6c8cbab 100644
--- a/package.json
+++ b/package.json
@@ -59,7 +59,7 @@
     "prettier": "3.2.5",
     "publint": "0.2.7",
     "svelte-check": "3.6.4",
-    "typescript": "5.1.6",
+    "typescript": "5.3.3",
     "vitest": "0.34.6"
   },
   "engines": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index adf241f..38b8b4b 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -41,8 +41,8 @@ devDependencies:
     specifier: 3.6.4
     version: 3.6.4(svelte@4.2.10)
   typescript:
-    specifier: 5.1.6
-    version: 5.1.6
+    specifier: 5.3.3
+    version: 5.3.3
   vitest:
     specifier: 0.34.6
     version: 0.34.6
@@ -2588,8 +2588,8 @@ packages:
       picocolors: 1.0.0
       sade: 1.8.1
       svelte: 4.2.10
-      svelte-preprocess: 5.1.0(svelte@4.2.10)(typescript@5.1.6)
-      typescript: 5.1.6
+      svelte-preprocess: 5.1.0(svelte@4.2.10)(typescript@5.3.3)
+      typescript: 5.3.3
     transitivePeerDependencies:
       - '@babel/core'
       - coffeescript
@@ -2610,7 +2610,7 @@ packages:
       svelte: 4.2.10
     dev: false
 
-  /svelte-preprocess@5.1.0(svelte@4.2.10)(typescript@5.1.6):
+  /svelte-preprocess@5.1.0(svelte@4.2.10)(typescript@5.3.3):
     resolution: {integrity: sha512-EkErPiDzHAc0k2MF5m6vBNmRUh338h2myhinUw/xaqsLs7/ZvsgREiLGj03VrSzbY/TB5ZXgBOsKraFee5yceA==}
     engines: {node: '>= 14.10.0'}
     requiresBuild: true
@@ -2654,7 +2654,7 @@ packages:
       sorcery: 0.11.0
       strip-indent: 3.0.0
       svelte: 4.2.10
-      typescript: 5.1.6
+      typescript: 5.3.3
     dev: true
 
   /svelte@4.2.10:
@@ -2769,8 +2769,8 @@ packages:
       is-typed-array: 1.1.10
     dev: true
 
-  /typescript@5.1.6:
-    resolution: {integrity: sha512-zaWCozRZ6DLEWAWFrVDz1H6FVXzUSfTy5FUMWsQlU8Ym5JP9eO4xkTIROFCQvhQf61z6O/G6ugw3SgAnvvm+HA==}
+  /typescript@5.3.3:
+    resolution: {integrity: sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==}
     engines: {node: '>=14.17'}
     hasBin: true
     dev: true