diff --git a/package.json b/package.json
index 1de76a6..016eb2b 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,7 @@
   },
   "devDependencies": {
     "@faker-js/faker": "^8.4.1",
+    "@firebase/rules-unit-testing": "^3.0.2",
     "@testing-library/jest-dom": "^6.4.2",
     "@testing-library/react": "^15.0.5",
     "@testing-library/user-event": "^14.5.2",
diff --git a/src/components/transactions/CSVUpload.test.tsx b/src/components/transactions/CSVUpload.test.tsx
index 590499b..0096d3a 100644
--- a/src/components/transactions/CSVUpload.test.tsx
+++ b/src/components/transactions/CSVUpload.test.tsx
@@ -20,7 +20,7 @@ const test = defaultTest.extend({ user: userEvent.setup() })
 // mock the "writeNewTransactionsBatched" function to cirumvent firebase auth and rules
 // its already been unit tested so we know it works
 vi.mock("../../utils/transaction", async (importOriginal) => {
-    const mod: {} = await importOriginal();
+    const mod: NonNullable<unknown> = await importOriginal();
     return {
         ...mod,
         writeNewTransactionsBatched: vi.fn(),
@@ -29,7 +29,7 @@ vi.mock("../../utils/transaction", async (importOriginal) => {
 
 // mock auth.currentUser to simulate a user being signed into website
 vi.mock("../../utils/firebase", async (importOriginal) => {
-    const mod: {} = await importOriginal();
+    const mod: NonNullable<unknown> = await importOriginal();
     return {
         ...mod,
         auth: { currentUser: { uid: "100" } }