diff --git a/main_test.go b/main_test.go
index 8a1dc46..a9026d9 100644
--- a/main_test.go
+++ b/main_test.go
@@ -35,13 +35,18 @@ const (
 	sentinelMasterPort = "9123"
 	sentinelSlave1Port = "9124"
 	sentinelSlave2Port = "9125"
-	sentinelPort       = "9126"
+	sentinelPort1      = "9126"
+	sentinelPort2      = "9127"
+	sentinelPort3      = "9128"
 )
 
 var (
-	redisMain                                                *redisProcess
-	ringShard1, ringShard2, ringShard3                       *redisProcess
-	sentinelMaster, sentinelSlave1, sentinelSlave2, sentinel *redisProcess
+	redisMain                                      *redisProcess
+	ringShard1, ringShard2, ringShard3             *redisProcess
+	sentinelMaster, sentinelSlave1, sentinelSlave2 *redisProcess
+	sentinel1, sentinel2, sentinel3                *redisProcess
+
+	sentinelAddrs = []string{":" + sentinelPort1, ":" + sentinelPort2, ":" + sentinelPort3}
 )
 
 var cluster = &clusterScenario{
@@ -69,7 +74,13 @@ var _ = BeforeSuite(func() {
 	sentinelMaster, err = startRedis(sentinelMasterPort)
 	Expect(err).NotTo(HaveOccurred())
 
-	sentinel, err = startSentinel(sentinelPort, sentinelName, sentinelMasterPort)
+	sentinel1, err = startSentinel(sentinelPort1, sentinelName, sentinelMasterPort)
+	Expect(err).NotTo(HaveOccurred())
+
+	sentinel2, err = startSentinel(sentinelPort2, sentinelName, sentinelMasterPort)
+	Expect(err).NotTo(HaveOccurred())
+
+	sentinel3, err = startSentinel(sentinelPort3, sentinelName, sentinelMasterPort)
 	Expect(err).NotTo(HaveOccurred())
 
 	sentinelSlave1, err = startRedis(
@@ -90,7 +101,9 @@ var _ = AfterSuite(func() {
 	Expect(ringShard2.Close()).NotTo(HaveOccurred())
 	Expect(ringShard3.Close()).NotTo(HaveOccurred())
 
-	Expect(sentinel.Close()).NotTo(HaveOccurred())
+	Expect(sentinel1.Close()).NotTo(HaveOccurred())
+	Expect(sentinel2.Close()).NotTo(HaveOccurred())
+	Expect(sentinel3.Close()).NotTo(HaveOccurred())
 	Expect(sentinelSlave1.Close()).NotTo(HaveOccurred())
 	Expect(sentinelSlave2.Close()).NotTo(HaveOccurred())
 	Expect(sentinelMaster.Close()).NotTo(HaveOccurred())
@@ -313,7 +326,7 @@ func startSentinel(port, masterName, masterPort string) (*redisProcess, error) {
 		return nil, err
 	}
 	for _, cmd := range []*redis.StatusCmd{
-		redis.NewStatusCmd(ctx, "SENTINEL", "MONITOR", masterName, "127.0.0.1", masterPort, "1"),
+		redis.NewStatusCmd(ctx, "SENTINEL", "MONITOR", masterName, "127.0.0.1", masterPort, "2"),
 		redis.NewStatusCmd(ctx, "SENTINEL", "SET", masterName, "down-after-milliseconds", "500"),
 		redis.NewStatusCmd(ctx, "SENTINEL", "SET", masterName, "failover-timeout", "1000"),
 		redis.NewStatusCmd(ctx, "SENTINEL", "SET", masterName, "parallel-syncs", "1"),
diff --git a/sentinel_test.go b/sentinel_test.go
index 3ac887c..80395c9 100644
--- a/sentinel_test.go
+++ b/sentinel_test.go
@@ -13,7 +13,7 @@ var _ = Describe("Sentinel", func() {
 	BeforeEach(func() {
 		client = redis.NewFailoverClient(&redis.FailoverOptions{
 			MasterName:    sentinelName,
-			SentinelAddrs: []string{":" + sentinelPort},
+			SentinelAddrs: sentinelAddrs,
 		})
 		Expect(client.FlushDB(ctx).Err()).NotTo(HaveOccurred())
 	})
@@ -45,7 +45,13 @@ var _ = Describe("Sentinel", func() {
 
 		// Wait until slaves are picked up by sentinel.
 		Eventually(func() string {
-			return sentinel.Info(ctx).Val()
+			return sentinel1.Info(ctx).Val()
+		}, "10s", "100ms").Should(ContainSubstring("slaves=2"))
+		Eventually(func() string {
+			return sentinel2.Info(ctx).Val()
+		}, "10s", "100ms").Should(ContainSubstring("slaves=2"))
+		Eventually(func() string {
+			return sentinel3.Info(ctx).Val()
 		}, "10s", "100ms").Should(ContainSubstring("slaves=2"))
 
 		// Kill master.
@@ -79,7 +85,7 @@ var _ = Describe("Sentinel", func() {
 
 		client = redis.NewFailoverClient(&redis.FailoverOptions{
 			MasterName:    sentinelName,
-			SentinelAddrs: []string{":" + sentinelPort},
+			SentinelAddrs: sentinelAddrs,
 			DB:            1,
 		})
 		err := client.Ping(ctx).Err()
diff --git a/universal_test.go b/universal_test.go
index d92ca04..7491a1d 100644
--- a/universal_test.go
+++ b/universal_test.go
@@ -19,7 +19,7 @@ var _ = Describe("UniversalClient", func() {
 	It("should connect to failover servers", func() {
 		client = redis.NewUniversalClient(&redis.UniversalOptions{
 			MasterName: sentinelName,
-			Addrs:      []string{":" + sentinelPort},
+			Addrs:      sentinelAddrs,
 		})
 		Expect(client.Ping(ctx).Err()).NotTo(HaveOccurred())
 	})