diff --git a/package.json b/package.json
index 8287168..97c842e 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "@egoist/prettier-config": "1.0.0",
     "prettier": "2.5.1",
     "tsup": "6.0.1",
-    "typescript": "4.5.4",
+    "typescript": "4.7.3",
     "vitest": "0.12.6"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 899e148..ed132d6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -4,14 +4,14 @@ specifiers:
   '@egoist/prettier-config': 1.0.0
   prettier: 2.5.1
   tsup: 6.0.1
-  typescript: 4.5.4
+  typescript: 4.7.3
   vitest: 0.12.6
 
 devDependencies:
   '@egoist/prettier-config': 1.0.0
   prettier: 2.5.1
-  tsup: 6.0.1_typescript@4.5.4
-  typescript: 4.5.4
+  tsup: 6.0.1_typescript@4.7.3
+  typescript: 4.7.3
   vitest: 0.12.6
 
 packages:
@@ -1021,7 +1021,7 @@ packages:
     resolution: {integrity: sha512-Y/arvbn+rrz3JCKl9C4kVNfTfSm2/mEp5FSz5EsZSANGPSlQrpRI5M4PKF+mJnE52jOO90PnPSc3Ur3bTQw0gA==}
     dev: true
 
-  /tsup/6.0.1_typescript@4.5.4:
+  /tsup/6.0.1_typescript@4.7.3:
     resolution: {integrity: sha512-2Pl1YkEEvzfg4aYgwUILaHV0wwZQKO7mNHMQChyzdCNlQqf11eug7gWk86XCb3CvRofCXBX87x73BTGjyS3cOQ==}
     engines: {node: '>=14'}
     hasBin: true
@@ -1051,7 +1051,7 @@ packages:
       source-map: 0.8.0-beta.0
       sucrase: 3.20.3
       tree-kill: 1.2.2
-      typescript: 4.5.4
+      typescript: 4.7.3
     transitivePeerDependencies:
       - supports-color
     dev: true
@@ -1061,8 +1061,8 @@ packages:
     engines: {node: '>=4'}
     dev: true
 
-  /typescript/4.5.4:
-    resolution: {integrity: sha512-VgYs2A2QIRuGphtzFV7aQJduJ2gyfTljngLzjpfW9FoYZF6xuw1W0vW9ghCKLfcWrCFxK81CSGRAvS1pn4fIUg==}
+  /typescript/4.7.3:
+    resolution: {integrity: sha512-WOkT3XYvrpXx4vMMqlD+8R8R37fZkjyLGlxavMc4iB8lrl8L0DeTcHbYgw/v0N/z9wAFsgBhcsF0ruoySS22mA==}
     engines: {node: '>=4.2.0'}
     hasBin: true
     dev: true