diff --git a/src/constants.ts b/src/constants.ts
index 1272c6e..0c24aca 100644
--- a/src/constants.ts
+++ b/src/constants.ts
@@ -3,9 +3,7 @@
 //
 // SPDX-License-Identifier: MIT
 
-import fs from 'fs';
-
-const pkg = JSON.parse(fs.readFileSync('package.json', { encoding: 'utf-8' }));
+import { version } from '../package.json';
 
 export const CLIENT_ID_LENGTH = 20;
 export const CLIENT_SECRET_LENGTH = 40;
@@ -16,7 +14,7 @@ export const JTI_LENGTH = 36;
 export const JWT_EXPIRATION = 300;
 export const JWT_LEEWAY = 60;
 
-export const USER_AGENT = `duo_universal_node/${pkg.version}`;
+export const USER_AGENT = `duo_universal_node/${version}`;
 export const SIG_ALGORITHM = 'HS512';
 export const GRANT_TYPE = 'authorization_code';
 export const CLIENT_ASSERTION_TYPE = 'urn:ietf:params:oauth:client-assertion-type:jwt-bearer';
diff --git a/tsconfig.json b/tsconfig.json
index 504e139..738556a 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,19 +11,10 @@
     "declaration": true,
     "strict": true,
     "esModuleInterop": true,
-    "rootDir": "src",
-    "types": [
-      "node",
-      "jest",
-      "jest-extended"
-    ]
+    "resolveJsonModule": true,
+    "rootDirs": ["src", "."],
+    "types": ["node", "jest", "jest-extended"]
   },
-  "include": [
-    "src/**/*.ts",
-    "test/**/*.ts"
-  ],
-  "exclude": [
-    "node_modules",
-    "dist"
-  ]
+  "include": ["src/**/*.ts", "test/**/*.ts"],
+  "exclude": ["node_modules", "dist"]
 }