diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f0de600..e473aa8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,9 +14,9 @@ jobs:
       fail-fast: false
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Use Node v${{ matrix.node-version }}
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
           node-version: ${{ matrix.node-version }}
       - name: Install Dependencies
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..bbbbe86
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,49 @@
+name: Publish Release (npm)
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+      - name: Install Dependencies
+        run: npm ci
+      - name: Lint
+        run: npm run lint
+      - name: Build
+        run: npm run build
+      - name: Test
+        run: npm test
+
+  publish-npm:
+    needs: build
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22.x
+          registry-url: 'https://registry.npmjs.org'
+          cache: 'npm'
+      - run: npm ci
+      - run: npm version ${TAG_NAME} --git-tag-version=false
+        env:
+          TAG_NAME: ${{ github.ref_name }}
+      - run: npm publish --provenance --access public --tag next
+        if: "github.event.release.prerelease"
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.npm_token }}
+      - run: npm publish --provenance --access public
+        if: "!github.event.release.prerelease"
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.npm_token }}
diff --git a/package-lock.json b/package-lock.json
index 60ea075..c8ee020 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,6 @@
         "eslint-config-google": "^0.14.0",
         "prettier": "^3.2.5",
         "rimraf": "^5.0.5",
-        "tshy": "^1.11.1",
         "typescript": "^5.3.3",
         "typescript-eslint": "^7.1.0"
       }
@@ -559,19 +558,6 @@
         "url": "https://github.com/chalk/ansi-styles?sponsor=1"
       }
     },
-    "node_modules/anymatch": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/anymatch/-/anymatch-3.1.3.tgz",
-      "integrity": "sha512-KMReFUr0B4t+D+OBkjR3KYqvocp2XaSzO55UcB6mgQMd3KbcE+mWTyvVV7D/zsdEbNnV6acZUutkiHQXvTr1Rw==",
-      "dev": true,
-      "dependencies": {
-        "normalize-path": "^3.0.0",
-        "picomatch": "^2.0.4"
-      },
-      "engines": {
-        "node": ">= 8"
-      }
-    },
     "node_modules/argparse": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
@@ -593,15 +579,6 @@
       "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
       "dev": true
     },
-    "node_modules/binary-extensions": {
-      "version": "2.2.0",
-      "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.2.0.tgz",
-      "integrity": "sha512-jDctJ/IVQbZoJykoeHbhXpOlNBqGNcwXJKJog42E5HDPUwQTSdjCHdihjj0DlnheQ7blbT6dHOafNAiS8ooQKA==",
-      "dev": true,
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/brace-expansion": {
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
@@ -674,42 +651,6 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
-    "node_modules/chokidar": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.6.0.tgz",
-      "integrity": "sha512-7VT13fmjotKpGipCW9JEQAusEPE+Ei8nl6/g4FBAmIm0GOOLMua9NDDo/DWp0ZAxCr3cPq5ZpBqmPAQgDda2Pw==",
-      "dev": true,
-      "dependencies": {
-        "anymatch": "~3.1.2",
-        "braces": "~3.0.2",
-        "glob-parent": "~5.1.2",
-        "is-binary-path": "~2.1.0",
-        "is-glob": "~4.0.1",
-        "normalize-path": "~3.0.0",
-        "readdirp": "~3.6.0"
-      },
-      "engines": {
-        "node": ">= 8.10.0"
-      },
-      "funding": {
-        "url": "https://paulmillr.com/funding/"
-      },
-      "optionalDependencies": {
-        "fsevents": "~2.3.2"
-      }
-    },
-    "node_modules/chokidar/node_modules/glob-parent": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
-      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
-      "dev": true,
-      "dependencies": {
-        "is-glob": "^4.0.1"
-      },
-      "engines": {
-        "node": ">= 6"
-      }
-    },
     "node_modules/cliui": {
       "version": "8.0.1",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
@@ -1211,20 +1152,6 @@
       "integrity": "sha512-OO0pH2lK6a0hZnAdau5ItzHPI6pUlvI7jMVnxUQRtw4owF2wk8lOSabtGDCTP4Ggrg2MbGnWO9X8K1t4+fGMDw==",
       "dev": true
     },
-    "node_modules/fsevents": {
-      "version": "2.3.3",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.3.tgz",
-      "integrity": "sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==",
-      "dev": true,
-      "hasInstallScript": true,
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": "^8.16.0 || ^10.6.0 || >=11.0.0"
-      }
-    },
     "node_modules/get-caller-file": {
       "version": "2.0.5",
       "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
@@ -1398,18 +1325,6 @@
       "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
       "dev": true
     },
-    "node_modules/is-binary-path": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/is-binary-path/-/is-binary-path-2.1.0.tgz",
-      "integrity": "sha512-ZMERYes6pDydyuGidse7OsHxtbI7WVeUEozgR/g7rd0xUimYNlvZRE/K2MgZTjWy725IfelLeVcEM97mmtRGXw==",
-      "dev": true,
-      "dependencies": {
-        "binary-extensions": "^2.0.0"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/is-extglob": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz",
@@ -1661,21 +1576,6 @@
         "node": ">=16 || 14 >=14.17"
       }
     },
-    "node_modules/mkdirp": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-3.0.1.tgz",
-      "integrity": "sha512-+NsyUUAZDmo6YVHzL/stxSu3t9YS1iljliy3BSDrXJ/dkn1KYdmtZODGGjLcc9XLgVVpH4KshHB8XmZgMhaBXg==",
-      "dev": true,
-      "bin": {
-        "mkdirp": "dist/cjs/src/bin.js"
-      },
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
-      }
-    },
     "node_modules/ms": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
@@ -1688,15 +1588,6 @@
       "integrity": "sha512-OWND8ei3VtNC9h7V60qff3SVobHr996CTwgxubgyQYEpg290h9J0buyECNNJexkFm5sOajh5G116RYA1c8ZMSw==",
       "dev": true
     },
-    "node_modules/normalize-path": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
-      "integrity": "sha512-6eZs5Ls3WtCisHWp9S2GUy8dqkpGi4BVSz3GaqiE6ezub0512ESztXUwUB6C6IKbQkY2Pnb/mD4WYojCRwcwLA==",
-      "dev": true,
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/once": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
@@ -1838,18 +1729,6 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
-    "node_modules/polite-json": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/polite-json/-/polite-json-4.0.1.tgz",
-      "integrity": "sha512-8LI5ZeCPBEb4uBbcYKNVwk4jgqNx1yHReWoW4H4uUihWlSqZsUDfSITrRhjliuPgxsNPFhNSudGO2Zu4cbWinQ==",
-      "dev": true,
-      "engines": {
-        "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
-      }
-    },
     "node_modules/prelude-ls": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/prelude-ls/-/prelude-ls-1.2.1.tgz",
@@ -1903,18 +1782,6 @@
         }
       ]
     },
-    "node_modules/readdirp": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.6.0.tgz",
-      "integrity": "sha512-hOS089on8RduqdbhvQ5Z37A0ESjsqz6qnRcffsMU3495FuTdqSm+7bhJ29JvIOsBDEEnan5DPu9t3To9VRlMzA==",
-      "dev": true,
-      "dependencies": {
-        "picomatch": "^2.2.1"
-      },
-      "engines": {
-        "node": ">=8.10.0"
-      }
-    },
     "node_modules/require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -1933,22 +1800,6 @@
         "node": ">=4"
       }
     },
-    "node_modules/resolve-import": {
-      "version": "1.4.5",
-      "resolved": "https://registry.npmjs.org/resolve-import/-/resolve-import-1.4.5.tgz",
-      "integrity": "sha512-HXb4YqODuuXT7Icq1Z++0g2JmhgbUHSs3VT2xR83gqvAPUikYT2Xk+562KHQgiaNkbBOlPddYrDLsC44qQggzw==",
-      "dev": true,
-      "dependencies": {
-        "glob": "^10.3.3",
-        "walk-up-path": "^3.0.1"
-      },
-      "engines": {
-        "node": "16 >=16.17.0 || 18 >= 18.6.0 || >=20"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
-      }
-    },
     "node_modules/reusify": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.0.4.tgz",
@@ -2171,27 +2022,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/sync-content": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/sync-content/-/sync-content-1.0.2.tgz",
-      "integrity": "sha512-znd3rYiiSxU3WteWyS9a6FXkTA/Wjk8WQsOyzHbineeL837dLn3DA4MRhsIX3qGcxDMH6+uuFV4axztssk7wEQ==",
-      "dev": true,
-      "dependencies": {
-        "glob": "^10.2.6",
-        "mkdirp": "^3.0.1",
-        "path-scurry": "^1.9.2",
-        "rimraf": "^5.0.1"
-      },
-      "bin": {
-        "sync-content": "dist/mjs/bin.mjs"
-      },
-      "engines": {
-        "node": ">=14"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
-      }
-    },
     "node_modules/test-exclude": {
       "version": "6.0.0",
       "resolved": "https://registry.npmjs.org/test-exclude/-/test-exclude-6.0.0.tgz",
@@ -2256,42 +2086,6 @@
         "typescript": ">=4.2.0"
       }
     },
-    "node_modules/tshy": {
-      "version": "1.11.1",
-      "resolved": "https://registry.npmjs.org/tshy/-/tshy-1.11.1.tgz",
-      "integrity": "sha512-AzATR8weBaUW46Nh4B1k5cfxVuADKJTXe95xHh7BzcI1RjQQy6HeUXQDY+erGEGTLpiv6N6xMFmtEsMMc7x40Q==",
-      "dev": true,
-      "dependencies": {
-        "chalk": "^5.3.0",
-        "chokidar": "^3.5.3",
-        "foreground-child": "^3.1.1",
-        "mkdirp": "^3.0.1",
-        "polite-json": "^4.0.1",
-        "resolve-import": "^1.4.4",
-        "rimraf": "^5.0.1",
-        "sync-content": "^1.0.2",
-        "typescript": "5.2 || 5.3",
-        "walk-up-path": "^3.0.1"
-      },
-      "bin": {
-        "tshy": "dist/esm/index.js"
-      },
-      "engines": {
-        "node": "16 >=16.17 || 18 >=18.15.0 || >=20.6.1"
-      }
-    },
-    "node_modules/tshy/node_modules/chalk": {
-      "version": "5.3.0",
-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-5.3.0.tgz",
-      "integrity": "sha512-dLitG79d+GV1Nb/VYcCDFivJeK1hiukt9QjRNVOsUtTy1rR1YJsmpGGTZ3qJos+uw7WmWF4wUwBd9jxjocFC2w==",
-      "dev": true,
-      "engines": {
-        "node": "^12.17.0 || ^14.13 || >=16.0.0"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/chalk?sponsor=1"
-      }
-    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
diff --git a/package.json b/package.json
index 17afa89..d72e2e7 100644
--- a/package.json
+++ b/package.json
@@ -3,10 +3,8 @@
   "version": "1.2.0",
   "description": "Utilities for finding the closest package.json file",
   "files": [
-    "dist",
-    "!dist/node_modules",
-    "!dist/cjs/test",
-    "!dist/esm/test"
+    "lib",
+    "!lib/test"
   ],
   "scripts": {
     "clean": "rimraf dist lib",
@@ -15,7 +13,7 @@
     "format": "prettier --write src",
     "lint": "npm run lint:format && eslint src",
     "test": "c8 node --test lib/**/*_test.js",
-    "prepare": "tshy"
+    "prepare": "npm run build"
   },
   "repository": {
     "type": "git",
@@ -45,35 +43,20 @@
     "eslint-config-google": "^0.14.0",
     "prettier": "^3.2.5",
     "rimraf": "^5.0.5",
-    "tshy": "^1.11.1",
     "typescript": "^5.3.3",
     "typescript-eslint": "^7.1.0"
   },
-  "tshy": {
-    "exclude": [
-      "src/test"
-    ],
-    "exports": {
-      ".": "./src/main.ts",
-      "./package.json": "./package.json"
-    }
-  },
   "exports": {
     ".": {
       "import": {
-        "types": "./dist/esm/main.d.ts",
-        "default": "./dist/esm/main.js"
-      },
-      "require": {
-        "types": "./dist/commonjs/main.d.ts",
-        "default": "./dist/commonjs/main.js"
+        "default": "./lib/main.js"
       }
     },
     "./package.json": "./package.json"
   },
   "type": "module",
-  "main": "./dist/commonjs/main.js",
-  "types": "./dist/commonjs/main.d.ts",
+  "main": "./lib/main.js",
+  "types": "./lib/main.d.ts",
   "dependencies": {
     "walk-up-path": "^3.0.1"
   }