diff --git a/package-lock.json b/package-lock.json
index ea91795f..ec50f9c5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
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       },
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+        "@arethetypeswrong/cli": "^0.16.1",
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         "@markedjs/testutils": "14.1.1-0",
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@@ -51,12 +51,12 @@
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-      "resolved": "https://registry.npmjs.org/@arethetypeswrong/cli/-/cli-0.15.4.tgz",
-      "integrity": "sha512-YDbImAi1MGkouT7f2yAECpUMFhhA1J0EaXzIqoC5GGtK0xDgauLtcsZezm8tNq7d3wOFXH7OnY+IORYcG212rw==",
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+      "resolved": "https://registry.npmjs.org/@arethetypeswrong/cli/-/cli-0.16.1.tgz",
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-        "@arethetypeswrong/core": "0.15.1",
+        "@arethetypeswrong/core": "0.16.0",
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@@ -84,26 +84,36 @@
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-      "resolved": "https://registry.npmjs.org/@arethetypeswrong/core/-/core-0.15.1.tgz",
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+      "resolved": "https://registry.npmjs.org/@arethetypeswrong/core/-/core-0.16.0.tgz",
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       "dev": true,
       "dependencies": {
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+        "cjs-module-lexer": "^1.2.3",
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         "semver": "^7.5.4",
-        "ts-expose-internals-conditionally": "1.0.0-empty.0",
-        "typescript": "5.3.3",
+        "typescript": "5.6.1-rc",
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       },
       "engines": {
         "node": ">=18"
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+      "resolved": "https://registry.npmjs.org/lru-cache/-/lru-cache-11.0.1.tgz",
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+      "dev": true,
+      "engines": {
+        "node": "20 || >=22"
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     "node_modules/@arethetypeswrong/core/node_modules/typescript": {
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-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.3.3.tgz",
-      "integrity": "sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==",
+      "version": "5.6.1-rc",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.6.1-rc.tgz",
+      "integrity": "sha512-E3b2+1zEFu84jB0YQi9BORDjz9+jGbwwy1Zi3G0LUNw7a7cePUrHMRNy8aPh53nXpkFGVHSxIZo5vKTfYaFiBQ==",
       "dev": true,
       "bin": {
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@@ -1947,6 +1957,12 @@
         "url": "https://github.com/sponsors/fb55"
       }
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+    "node_modules/cjs-module-lexer": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/cjs-module-lexer/-/cjs-module-lexer-1.4.1.tgz",
+      "integrity": "sha512-cuSVIHi9/9E/+821Qjdvngor+xpnlwnuwIyZOaLmHBVdXL+gP+I6QQB9VkO7RI77YIcTV+S1W9AreJ5eN63JBA==",
+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/clean-stack/-/clean-stack-2.2.0.tgz",
@@ -8714,12 +8730,6 @@
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-    "node_modules/ts-expose-internals-conditionally": {
-      "version": "1.0.0-empty.0",
-      "resolved": "https://registry.npmjs.org/ts-expose-internals-conditionally/-/ts-expose-internals-conditionally-1.0.0-empty.0.tgz",
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-      "dev": true
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       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.7.0.tgz",
diff --git a/package.json b/package.json
index 059da129..0aa8bb21 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "html"
   ],
   "devDependencies": {
-    "@arethetypeswrong/cli": "^0.15.4",
+    "@arethetypeswrong/cli": "^0.16.1",
     "@markedjs/eslint-config": "^1.0.2",
     "@markedjs/testutils": "14.1.1-0",
     "@rollup/plugin-terser": "^0.4.4",