diff --git a/package-lock.json b/package-lock.json
index e01a1b2..24b0f97 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,8 +21,8 @@
       },
       "devDependencies": {
         "micro-should": "0.4.0",
-        "prettier": "2.6.2",
-        "typescript": "4.7.3"
+        "prettier": "2.8.4",
+        "typescript": "5.0.2"
       }
     },
     "node_modules/@noble/curves": {
@@ -68,9 +68,9 @@
       "dev": true
     },
     "node_modules/prettier": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.6.2.tgz",
-      "integrity": "sha512-PkUpF+qoXTqhOeWL9fu7As8LXsIUZ1WYaJiY/a7McAQzxjk82OF0tibkFXVCDImZtWxbvojFjerkiLb0/q8mew==",
+      "version": "2.8.4",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.8.4.tgz",
+      "integrity": "sha512-vIS4Rlc2FNh0BySk3Wkd6xmwxB0FpOndW5fisM5H8hsZSxU2VWVB5CWIkIjWvrHjIhxk2g3bfMKM87zNTrZddw==",
       "dev": true,
       "bin": {
         "prettier": "bin-prettier.js"
@@ -83,16 +83,16 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.7.3",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.7.3.tgz",
-      "integrity": "sha512-WOkT3XYvrpXx4vMMqlD+8R8R37fZkjyLGlxavMc4iB8lrl8L0DeTcHbYgw/v0N/z9wAFsgBhcsF0ruoySS22mA==",
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.0.2.tgz",
+      "integrity": "sha512-wVORMBGO/FAs/++blGNeAVdbNKtIh1rbBL2EyQ1+J9lClJ93KiiKe8PmFIVdXhHcyv44SL9oglmfeSsndo0jRw==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=12.20"
       }
     }
   }
diff --git a/package.json b/package.json
index a94f436..6df550e 100644
--- a/package.json
+++ b/package.json
@@ -28,8 +28,8 @@
   },
   "devDependencies": {
     "micro-should": "0.4.0",
-    "prettier": "2.6.2",
-    "typescript": "4.7.3"
+    "prettier": "2.8.4",
+    "typescript": "5.0.2"
   },
   "author": "Paul Miller (https://paulmillr.com)",
   "homepage": "https://paulmillr.com/",