diff --git a/package.json b/package.json
index 776128f..48b8694 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,9 @@
         "lint:fix": "yarn lint --fix",
         "test": "jest src",
         "test:watch": "yarn test --watchAll",
-        "test:coverage": "yarn test --coverage"
+        "test:coverage": "yarn test --coverage",
+        "types": "tsc --noEmit src/**/*.ts",
+        "types:watch": "yarn types --watch"
     },
     "devDependencies": {
         "@babel/cli": "^7.8.4",
diff --git a/src/__tests__/index.test.ts b/src/__tests__/index.test.ts
index e2796f7..e44cd52 100644
--- a/src/__tests__/index.test.ts
+++ b/src/__tests__/index.test.ts
@@ -6,12 +6,12 @@ import type { Report } from '../index.d'
 import packwatch from '..'
 
 async function prepareWorkspace(): Promise<string> {
-    const workspacePath = await fs.mkdtemp(`${tmpdir()}/`, { recursive: true })
+    const workspacePath = await fs.mkdtemp(`${tmpdir()}/`)
     return workspacePath
 }
 
 async function cleanUpWorkspace(paths: string[]): Promise<void> {
-    return Promise.all(
+    await Promise.all(
         paths.map(async path => fs.rmdir(path, { recursive: true })),
     )
 }
@@ -68,7 +68,9 @@ describe('Packwatch', () => {
             workspacePath = await prepareWorkspace()
             await createPackageJson(workspacePath)
 
-            await packwatch({ cwd: workspacePath })
+            await expect(async () =>
+                packwatch({ cwd: workspacePath }),
+            ).rejects.toThrow()
 
             const generatedManifest = await fs.readFile(
                 resolve(join(workspacePath, '.packwatch.json')),
@@ -84,7 +86,9 @@ describe('Packwatch', () => {
             workspacePath = await prepareWorkspace()
             await createPackageJson(workspacePath)
 
-            await packwatch({ cwd: workspacePath })
+            await expect(async () =>
+                packwatch({ cwd: workspacePath }),
+            ).rejects.toThrow()
 
             expect(mockLogger.mock.calls).toHaveLength(2)
             expect(mockLogger.mock.calls[0][0]).toEqual(
diff --git a/src/index.ts b/src/index.ts
index 4a799f6..c08abf2 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -23,7 +23,7 @@ export default async function packwatch({
         console.log(
             '🤔 There is no package.json file here. Are you in the root directory of your project?',
         )
-        return 1
+        return
     }
 
     const currentStats = getCurrentPackageStats(cwd)
@@ -46,7 +46,8 @@ export default async function packwatch({
         }
         // If the update flag wasn't specified, exit with a non-zero code so we
         // don't "accidentally" pass CI builds if the manifest didn't exist
-        return isUpdatingManifest ? 0 : 1
+        if (!isUpdatingManifest) throw new Error()
+        else return
     }
 
     const previousStats = getPreviousPackageStats(cwd)
@@ -73,7 +74,7 @@ export default async function packwatch({
         console.log(
             `📝 Updated the manifest! Package size: ${packageSize}, Limit: ${packageSize}`,
         )
-        return 0
+        return
     }
 
     /*
@@ -85,7 +86,7 @@ export default async function packwatch({
         console.log(
             `🔥🔥📦🔥🔥 Your package exceeds the limit set in ${MANIFEST_FILENAME}! ${packageSize} > ${limit}\nEither update the limit by using the --update-manifest flag or trim down your packed files!`,
         )
-        return 1
+        return
     }
 
     /*
@@ -107,5 +108,5 @@ export default async function packwatch({
             `📦 Nothing to report! Your package is the same size as the latest manifest reports! (Limit: ${limit})`,
         )
     }
-    return 0
+    return
 }
diff --git a/src/utils.ts b/src/utils.ts
index 9e254fd..0c5182b 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -68,6 +68,7 @@ export function createOrUpdateManifest({
 }: {
     previous?: Report
     current: Report
+    manifestPath: string
     updateLimit?: boolean
 }): void {
     const { limit } = previous || {}