diff --git a/backend/src/schema/resolvers/rewards.spec.js b/backend/src/schema/resolvers/rewards.spec.js
index f44cf51f6..108973c9c 100644
--- a/backend/src/schema/resolvers/rewards.spec.js
+++ b/backend/src/schema/resolvers/rewards.spec.js
@@ -33,6 +33,7 @@ describe('rewards', () => {
 
   afterAll(async () => {
     await cleanDatabase()
+    driver.close()
   })
 
   beforeEach(async () => {