diff --git a/backend/e2e-test/mocks/keystore.ts b/backend/e2e-test/mocks/keystore.ts
index 577e3c871..f4f251616 100644
--- a/backend/e2e-test/mocks/keystore.ts
+++ b/backend/e2e-test/mocks/keystore.ts
@@ -1,6 +1,7 @@
 import RE2 from "re2";
 
 import { TKeyStoreFactory } from "@app/keystore/keystore";
+import { applyJitter } from "@app/lib/dates";
 import { delay as delayMs } from "@app/lib/delay";
 import { Lock } from "@app/lib/red-lock";
 
@@ -37,7 +38,7 @@ export const mockKeyStore = (): TKeyStoreFactory => {
         }
 
         // eslint-disable-next-line no-await-in-loop
-        await delayMs(Math.max(0, delay + Math.floor((Math.random() * 2 - 1) * jitter)));
+        await delayMs(Math.max(0, applyJitter(delay, jitter)));
       }
 
       return totalDeleted;
diff --git a/backend/src/keystore/keystore.ts b/backend/src/keystore/keystore.ts
index 0e1c3e35e..5f5eb3f50 100644
--- a/backend/src/keystore/keystore.ts
+++ b/backend/src/keystore/keystore.ts
@@ -1,6 +1,7 @@
 import { Redis } from "ioredis";
 
 import { pgAdvisoryLockHashText } from "@app/lib/crypto/hashtext";
+import { applyJitter } from "@app/lib/dates";
 import { delay as delayMs } from "@app/lib/delay";
 import { Redlock, Settings } from "@app/lib/red-lock";
 
@@ -104,7 +105,7 @@ export const keyStoreFactory = (redisUrl: string) => {
         totalDeleted += batch.length;
 
         // eslint-disable-next-line no-await-in-loop
-        await delayMs(Math.max(0, delay + Math.floor((Math.random() * 2 - 1) * jitter)));
+        await delayMs(Math.max(0, applyJitter(delay, jitter)));
       }
     } while (cursor !== "0");
 
@@ -130,7 +131,7 @@ export const keyStoreFactory = (redisUrl: string) => {
       // eslint-disable-next-line
       await new Promise((resolve) => {
         waitingCb?.();
-        setTimeout(resolve, Math.max(0, delay + Math.floor((Math.random() * 2 - 1) * jitter)));
+        setTimeout(resolve, Math.max(0, applyJitter(delay, jitter)));
       });
       attempts += 1;
       // eslint-disable-next-line
diff --git a/backend/src/keystore/memory.ts b/backend/src/keystore/memory.ts
index eab3a32dd..84cd06c03 100644
--- a/backend/src/keystore/memory.ts
+++ b/backend/src/keystore/memory.ts
@@ -1,5 +1,6 @@
 import RE2 from "re2";
 
+import { applyJitter } from "@app/lib/dates";
 import { delay as delayMs } from "@app/lib/delay";
 import { Lock } from "@app/lib/red-lock";
 
@@ -38,7 +39,7 @@ export const inMemoryKeyStore = (): TKeyStoreFactory => {
         }
 
         // eslint-disable-next-line no-await-in-loop
-        await delayMs(Math.max(0, delay + Math.floor((Math.random() * 2 - 1) * jitter)));
+        await delayMs(Math.max(0, applyJitter(delay, jitter)));
       }
 
       return totalDeleted;