diff --git a/package-lock.json b/package-lock.json
index 7b307a7..27a51b4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,7 +25,7 @@
         "prettier": "^1.19.1",
         "sinon": "^7.5.0",
         "tslint": "^5.20.0",
-        "typescript": "^4.2.5"
+        "typescript": "^5.7.3"
       },
       "engines": {
         "node": ">=14.0.0"
@@ -13312,16 +13312,16 @@
       }
     },
     "node_modules/typescript": {
-      "version": "4.6.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.4.tgz",
-      "integrity": "sha512-9ia/jWHIEbo49HfjrLGfKbZSuWo9iTMwXO+Ca3pRsSpbsMbc7/IU8NKdCZVRRBafVPGnoJeFL76ZOAA84I9fEg==",
+      "version": "5.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
+      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=4.2.0"
+        "node": ">=14.17"
       }
     },
     "node_modules/undici-types": {
@@ -24958,9 +24958,9 @@
       }
     },
     "typescript": {
-      "version": "4.6.4",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.6.4.tgz",
-      "integrity": "sha512-9ia/jWHIEbo49HfjrLGfKbZSuWo9iTMwXO+Ca3pRsSpbsMbc7/IU8NKdCZVRRBafVPGnoJeFL76ZOAA84I9fEg==",
+      "version": "5.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
+      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
       "dev": true
     },
     "undici-types": {
diff --git a/package.json b/package.json
index b0d7628..85f0db5 100644
--- a/package.json
+++ b/package.json
@@ -4,14 +4,14 @@
   "description": "A testing companion to firebase-functions.",
   "main": "lib/index.js",
   "scripts": {
-    "build": "npm i && node_modules/.bin/tsc -p tsconfig.release.json",
-    "build:pack": "npm prune --production && rm -rf lib && npm install && node_modules/.bin/tsc -p tsconfig.release.json && npm pack && npm install",
-    "build:release": "npm ci --production && npm install --no-save typescript firebase-functions firebase-admin && node_modules/.bin/tsc -p tsconfig.release.json",
-    "lint": "node_modules/.bin/tslint src/{**/*,*}.ts spec/{**/*,*}.ts",
-    "pretest": "node_modules/.bin/tsc",
+    "build": "npm i && tsc -p tsconfig.release.json",
+    "build:pack": "npm prune --production && rm -rf lib && npm install && tsc -p tsconfig.release.json && npm pack && npm install",
+    "build:release": "npm ci --production && npm install --no-save typescript firebase-functions firebase-admin && tsc -p tsconfig.release.json",
+    "lint": "tslint src/{**/*,*}.ts spec/{**/*,*}.ts",
+    "pretest": "tsc",
     "test": "mocha .tmp/spec/index.spec.js",
     "posttest": "npm run lint && rm -rf .tmp",
-    "preintegrationTest": "node_modules/.bin/tsc",
+    "preintegrationTest": "tsc",
     "integrationTest": "firebase emulators:exec --project=not-a-project --only firestore 'mocha .tmp/spec/integration/**/*.spec.js'",
     "postintegrationTest": "rm -rf .tmp",
     "format": "prettier --check '**/*.{json,ts,yml,yaml}'",
@@ -54,7 +54,7 @@
     "prettier": "^1.19.1",
     "sinon": "^7.5.0",
     "tslint": "^5.20.0",
-    "typescript": "^4.2.5"
+    "typescript": "^5.7.3"
   },
   "peerDependencies": {
     "firebase-admin": "^8.0.0 || ^9.0.0 || ^10.0.0 || ^11.0.0 || ^12.0.0 || ^13.0.0",