diff --git a/packages/plugins/response-cache-redis/src/redis-cache.ts b/packages/plugins/response-cache-redis/src/redis-cache.ts
index 3b8f111778..487390033c 100644
--- a/packages/plugins/response-cache-redis/src/redis-cache.ts
+++ b/packages/plugins/response-cache-redis/src/redis-cache.ts
@@ -70,7 +70,7 @@ export const createRedisCache = (params: RedisCacheParameter): Cache => {
         pipeline.set(responseId, JSON.stringify(result));
       } else {
         // set the ttl in milliseconds
-        pipeline.set(responseId, JSON.stringify(result), 'PX', ttl);
+        pipeline.set(responseId, JSON.stringify(result), 'EX', ttl);
       }
 
       const responseKey = buildRedisOperationResultCacheKey(responseId);
diff --git a/packages/plugins/response-cache-redis/test/response-redis-cache.spec.ts b/packages/plugins/response-cache-redis/test/response-redis-cache.spec.ts
index 59fbaad47e..53f8b96725 100644
--- a/packages/plugins/response-cache-redis/test/response-redis-cache.spec.ts
+++ b/packages/plugins/response-cache-redis/test/response-redis-cache.spec.ts
@@ -797,8 +797,8 @@ describeIf(versionInfo.major >= 16)('useResponseCache with Redis cache', () => {
     // so queried just once
     expect(spy).toHaveBeenCalledTimes(1);
 
-    // let's travel in time beyond the ttl of 100
-    jest.advanceTimersByTime(150);
+    // let's travel in time beyond the ttl of 100 seconds
+    jest.advanceTimersByTime(150_000);
 
     // since the cache has expired, now when we query
     await testInstance.execute(query);
@@ -1083,8 +1083,8 @@ describeIf(versionInfo.major >= 16)('useResponseCache with Redis cache', () => {
     await testInstance.execute(query);
     expect(spy).toHaveBeenCalledTimes(1);
 
-    // wait so User expires
-    jest.advanceTimersByTime(201);
+    // wait so User expires, beyond 200 seconds
+    jest.advanceTimersByTime(201_000);
 
     await testInstance.execute(query);
     // now we've queried twice
@@ -1174,8 +1174,8 @@ describeIf(versionInfo.major >= 16)('useResponseCache with Redis cache', () => {
     await testInstance.execute(query);
     expect(spy).toHaveBeenCalledTimes(1);
 
-    // wait so User expires
-    jest.advanceTimersByTime(201);
+    // wait so User expires beyond 200 seconds
+    jest.advanceTimersByTime(201_000);
 
     await testInstance.execute(query);
     // now we've queried twice