diff --git a/jest.config.js b/jest.config.js
index e7b572e..6a81100 100644
--- a/jest.config.js
+++ b/jest.config.js
@@ -127,7 +127,7 @@ module.exports = {
   setupFiles: [],
 
   // A list of paths to modules that run some code to configure or set up the testing framework before each test
-  setupFilesAfterEnv: ['jest-extended'],
+  setupFilesAfterEnv: ['jest-extended/all'],
 
   // A list of paths to snapshot serializer modules Jest should use for snapshot testing
   // snapshotSerializers: [],
diff --git a/src/types/system/global.d.ts b/src/types/system/global.d.ts
new file mode 100644
index 0000000..b68ae07
--- /dev/null
+++ b/src/types/system/global.d.ts
@@ -0,0 +1 @@
+import 'jest-extended'
diff --git a/tsconfig.json b/tsconfig.json
index 36161db..fee90bb 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,7 +6,8 @@
     "declaration": true,
     "outDir": "./build",
     "strict": true,
-    "sourceMap": true
+    "sourceMap": true,
+    "typeRoots": ["./node_modules/@types", "./src/types/system"]
   },
   "include": ["src"],
   "exclude": ["node_modules"]