diff --git a/package-lock.json b/package-lock.json
index d2c21ed..f97437d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19,7 +19,8 @@
     "@types/joi": {
       "version": "14.3.4",
       "resolved": "https://registry.npmjs.org/@types/joi/-/joi-14.3.4.tgz",
-      "integrity": "sha512-1TQNDJvIKlgYXGNIABfgFp9y0FziDpuGrd799Q5RcnsDu+krD+eeW/0Fs5PHARvWWFelOhIG2OPCo6KbadBM4A=="
+      "integrity": "sha512-1TQNDJvIKlgYXGNIABfgFp9y0FziDpuGrd799Q5RcnsDu+krD+eeW/0Fs5PHARvWWFelOhIG2OPCo6KbadBM4A==",
+      "dev": true
     },
     "@types/node": {
       "version": "12.12.14",
@@ -217,9 +218,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.7.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.2.tgz",
-      "integrity": "sha512-ml7V7JfiN2Xwvcer+XAf2csGO1bPBdRbFCkYBczNZggrBZ9c7G3riSUeJmqEU5uOtXNPMhE3n+R4FA/3YOAWOQ==",
+      "version": "3.9.7",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
+      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
       "dev": true
     },
     "wrappy": {
diff --git a/package.json b/package.json
index 9eb8717..a204ead 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
 	"description": "The easiest way to generate custom Apple Wallet passes in Node.js",
 	"main": "index.js",
 	"scripts": {
-		"build": "tsc",
+		"build": "npx tsc",
 		"prepublishOnly": "npm run build",
 		"test": "npm run build && jasmine spec/index.js"
 	},
@@ -30,12 +30,12 @@
 	},
 	"devDependencies": {
 		"@types/debug": "^4.1.5",
-		"@types/joi": "^14.3.4",
 		"@types/jasmine": "^3.5.0",
+		"@types/joi": "^14.3.4",
 		"@types/node": "^12.12.14",
 		"@types/node-forge": "^0.9.0",
 		"@types/yazl": "^2.4.2",
 		"jasmine": "^3.5.0",
-		"typescript": "^3.7.2"
+		"typescript": "^3.9.7"
 	}
 }