diff --git a/app.js b/app.js
index f0af701..d075f80 100644
--- a/app.js
+++ b/app.js
@@ -3,12 +3,38 @@ assert.ok(process.env.JAMBONES_MYSQL_HOST &&
   process.env.JAMBONES_MYSQL_USER &&
   process.env.JAMBONES_MYSQL_PASSWORD &&
   process.env.JAMBONES_MYSQL_DATABASE, 'missing JAMBONES_MYSQL_XXX env vars');
-assert.ok(process.env.JAMBONES_REDIS_HOST, 'missing JAMBONES_REDIS_HOST env var');
+if (process.env.JAMBONES_REDIS_SENTINELS) {
+  assert.ok(process.env.JAMBONES_REDIS_SENTINEL_MASTER_NAME,
+    'missing JAMBONES_REDIS_SENTINEL_MASTER_NAME env var, JAMBONES_REDIS_SENTINEL_PASSWORD env var is optional');
+} else {
+  assert.ok(process.env.JAMBONES_REDIS_HOST, 'missing JAMBONES_REDIS_HOST env var');
+}
 assert.ok(process.env.DRACHTIO_HOST, 'missing DRACHTIO_HOST env var');
 assert.ok(process.env.DRACHTIO_PORT, 'missing DRACHTIO_PORT env var');
 assert.ok(process.env.DRACHTIO_SECRET, 'missing DRACHTIO_SECRET env var');
 assert.ok(process.env.JAMBONES_TIME_SERIES_HOST, 'missing JAMBONES_TIME_SERIES_HOST env var');
 
+const JAMBONES_REDIS_SENTINELS = process.env.JAMBONES_REDIS_SENTINELS ? {
+  sentinels: process.env.JAMBONES_REDIS_SENTINELS.split(',').map((sentinel) => {
+    let host, port = 26379;
+    if (sentinel.includes(':')) {
+      const arr = sentinel.split(':');
+      host = arr[0];
+      port = parseInt(arr[1], 10);
+    } else {
+      host = sentinel;
+    }
+    return {host, port};
+  }),
+  name: process.env.JAMBONES_REDIS_SENTINEL_MASTER_NAME,
+  ...(process.env.JAMBONES_REDIS_SENTINEL_PASSWORD && {
+    password: process.env.JAMBONES_REDIS_SENTINEL_PASSWORD
+  }),
+  ...(process.env.JAMBONES_REDIS_SENTINEL_USERNAME && {
+    username: process.env.JAMBONES_REDIS_SENTINEL_USERNAME
+  })
+} : null;
+
 const logger = require('pino')({ level: process.env.JAMBONES_LOGLEVEL || 'info' });
 const Srf = require('drachtio-srf');
 const srf = new Srf();
@@ -47,6 +73,7 @@ const {
 });
 
 const {
+  client,
   addKey,
   addKeyNx,
   retrieveKey,
@@ -54,7 +81,7 @@ const {
   removeFromSet,
   isMemberOfSet,
   retrieveSet
-} = require('@jambonz/realtimedb-helpers')({
+} = require('@jambonz/realtimedb-helpers')(JAMBONES_REDIS_SENTINELS || {
   host: process.env.JAMBONES_REDIS_HOST,
   port: process.env.JAMBONES_REDIS_PORT || 6379
 }, logger);
@@ -66,10 +93,7 @@ srf.locals = {
   logger,
   stats,
   addToSet, removeFromSet, isMemberOfSet, retrieveSet,
-  registrar: new Registrar(logger, {
-    host: process.env.JAMBONES_REDIS_HOST,
-    port: process.env.JAMBONES_REDIS_PORT || 6379
-  }),
+  registrar: new Registrar(logger, client),
   dbHelpers: {
     lookupAuthHook,
     lookupAllVoipCarriers,
diff --git a/package-lock.json b/package-lock.json
index 2571bf7..a75daf0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,8 +11,8 @@
       "dependencies": {
         "@jambonz/db-helpers": "^0.9.0",
         "@jambonz/http-authenticator": "^0.2.2",
-        "@jambonz/mw-registrar": "^0.2.3",
-        "@jambonz/realtimedb-helpers": "^0.8.1",
+        "@jambonz/mw-registrar": "^0.2.4",
+        "@jambonz/realtimedb-helpers": "^0.8.6",
         "@jambonz/stats-collector": "^0.1.8",
         "@jambonz/time-series": "^0.2.5",
         "debug": "^4.3.4",
@@ -653,30 +653,17 @@
       }
     },
     "node_modules/@jambonz/mw-registrar": {
-      "version": "0.2.3",
-      "resolved": "https://registry.npmjs.org/@jambonz/mw-registrar/-/mw-registrar-0.2.3.tgz",
-      "integrity": "sha512-M8jwV1uVrzumrmcHz0s82B6mrRnh4ODN66nT7wcgFk3EKRJTEsylMG7KmtnurHP1eWkeBbnVUDg6qC6iJqctuw==",
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/@jambonz/mw-registrar/-/mw-registrar-0.2.4.tgz",
+      "integrity": "sha512-GHRlvHsDvwfQfqOUKh4Emt+CvoiODQ+Tny5zg8ZT5q5yz77qy3XIfOF072xO9gDSPrXjn0rH13W3iIKtNzcOIA==",
       "dependencies": {
-        "@jambonz/promisify-redis": "^0.0.6",
-        "debug": "^4.3.1",
-        "redis": "^3.1.1"
-      }
-    },
-    "node_modules/@jambonz/promisify-redis": {
-      "version": "0.0.6",
-      "resolved": "https://registry.npmjs.org/@jambonz/promisify-redis/-/promisify-redis-0.0.6.tgz",
-      "integrity": "sha512-9KmWV+ODDOPwdqijhgXOXkloGNm7nmCf3ch4D1vN46lh9FQLmnlQmEmBHIFaKB3vAgIgcMzNzcNmY23JGCGguA==",
-      "dependencies": {
-        "redis-commands": "^1.6.0"
-      },
-      "peerDependencies": {
-        "redis": "^3.0.0"
+        "debug": "^4.3.1"
       }
     },
     "node_modules/@jambonz/realtimedb-helpers": {
-      "version": "0.8.1",
-      "resolved": "https://registry.npmjs.org/@jambonz/realtimedb-helpers/-/realtimedb-helpers-0.8.1.tgz",
-      "integrity": "sha512-SkF5+raJdSfzAdg82jvbQp11ioXrt1Dn456Urf/01y/Zp8jbAZKbiztxoh13lZ5Dvo6XjOuWNJVZQIIYVy0+aA==",
+      "version": "0.8.6",
+      "resolved": "https://registry.npmjs.org/@jambonz/realtimedb-helpers/-/realtimedb-helpers-0.8.6.tgz",
+      "integrity": "sha512-ODKVVat2VAQheY13DjiAxiBBOmffMoeu3xviTjsTODr3ySZkqQZvSWU7N80pAIZvoiWG1UUEy9yI8D8mE4Jgiw==",
       "dependencies": {
         "debug": "^4.3.4",
         "ioredis": "^5.3.2"
@@ -3615,29 +3602,6 @@
       "resolved": "https://registry.npmjs.org/quick-format-unescaped/-/quick-format-unescaped-4.0.4.tgz",
       "integrity": "sha512-tYC1Q1hgyRuHgloV/YXs2w15unPVh8qfu/qCTfhTYamaw7fyhumKa2yGpdSo87vY32rIclj+4fWYQXUMs9EHvg=="
     },
-    "node_modules/redis": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/redis/-/redis-3.1.2.tgz",
-      "integrity": "sha512-grn5KoZLr/qrRQVwoSkmzdbw6pwF+/rwODtrOr6vuBRiR/f3rjSTGupbF90Zpqm2oenix8Do6RV7pYEkGwlKkw==",
-      "dependencies": {
-        "denque": "^1.5.0",
-        "redis-commands": "^1.7.0",
-        "redis-errors": "^1.2.0",
-        "redis-parser": "^3.0.0"
-      },
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "type": "opencollective",
-        "url": "https://opencollective.com/node-redis"
-      }
-    },
-    "node_modules/redis-commands": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/redis-commands/-/redis-commands-1.7.0.tgz",
-      "integrity": "sha512-nJWqw3bTFy21hX/CPKHth6sfhZbdiHP6bTawSgQBlKOVRG7EZkfHbbHwQJnrE4vsQf0CMNE+3gJ4Fmm16vdVlQ=="
-    },
     "node_modules/redis-errors": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/redis-errors/-/redis-errors-1.2.0.tgz",
@@ -3657,14 +3621,6 @@
         "node": ">=4"
       }
     },
-    "node_modules/redis/node_modules/denque": {
-      "version": "1.5.1",
-      "resolved": "https://registry.npmjs.org/denque/-/denque-1.5.1.tgz",
-      "integrity": "sha512-XwE+iZ4D6ZUB7mfYRMb5wByE8L74HCn30FBN7sWnXksWc1LO1bPDl67pBR9o/kC4z/xSNAwkMYcGgqDV3BE3Hw==",
-      "engines": {
-        "node": ">=0.10"
-      }
-    },
     "node_modules/regexp.prototype.flags": {
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/regexp.prototype.flags/-/regexp.prototype.flags-1.4.3.tgz",
diff --git a/package.json b/package.json
index 25d45d2..447238d 100644
--- a/package.json
+++ b/package.json
@@ -29,8 +29,8 @@
   "dependencies": {
     "@jambonz/db-helpers": "^0.9.0",
     "@jambonz/http-authenticator": "^0.2.2",
-    "@jambonz/mw-registrar": "^0.2.3",
-    "@jambonz/realtimedb-helpers": "^0.8.1",
+    "@jambonz/mw-registrar": "^0.2.4",
+    "@jambonz/realtimedb-helpers": "^0.8.6",
     "@jambonz/stats-collector": "^0.1.8",
     "@jambonz/time-series": "^0.2.5",
     "debug": "^4.3.4",