diff --git a/.env.ci b/.env.ci
index 1305e70f..bd5f404b 100644
--- a/.env.ci
+++ b/.env.ci
@@ -18,6 +18,8 @@ CELLULOID_PG_IDLE_TIMEOUT=30000
 # Cookie secret key. Generate something random and long.
 CELLULOID_COOKIE_SECRET=cisecret3
 
+CELLULOID_REDIS_URL=redis://localhost
+
 # email params. Check with your SMTP provider
 CELLULOID_SMTP_HOST=
 CELLULOID_SMTP_USER=
diff --git a/.github/workflows/dockerfile-ci.yml b/.github/workflows/dockerfile-ci.yml
index 15532619..2ac9ecda 100644
--- a/.github/workflows/dockerfile-ci.yml
+++ b/.github/workflows/dockerfile-ci.yml
@@ -46,7 +46,7 @@ jobs:
         run: "ifconfig -a"
       - name: "Start docker server"
         run:
-          docker run --rm -d --init -p 5678:5678 --env-file .env -e NODE_ENV=production -e CELLULOID_PG_HOST=172.17.0.1
+          docker run --rm -d --init -p 5678:5678 --env-file .env -e NODE_ENV=production -e CELLULOID_PG_HOST=172.17.0.1 -e CELLULOID_PG_HOST=redis://172.17.0.1
           --name celluloid-server celluloid-server
       - name: "Test docker"
         run: node .github/workflows/test-docker.js
diff --git a/.github/workflows/test-docker.js b/.github/workflows/test-docker.js
index 2d5c38ec..e6d094c7 100644
--- a/.github/workflows/test-docker.js
+++ b/.github/workflows/test-docker.js
@@ -14,7 +14,7 @@ async function main() {
         controller.abort();
       }, 3000);
       try {
-        response = await fetch("http://localhost:5678", {
+        response = await fetch("http://localhost:3001", {
           signal: controller.signal,
         });
       } finally {
diff --git a/packages/server/src/http/SessionStore.ts b/packages/server/src/http/SessionStore.ts
index a61a61cd..ff82f347 100644
--- a/packages/server/src/http/SessionStore.ts
+++ b/packages/server/src/http/SessionStore.ts
@@ -10,7 +10,7 @@ import { logger } from "../backends/Logger";
 const log = logger("http/Session");
 
 export function createSession() {
-  let client = createClient({ legacyMode: true });
+  let client = createClient({ legacyMode: true, url: process.env.CELLULOID_REDIS_URL || "redis://localhost" });
   client.connect().catch((e) => log.error(`redis error : ${e.message}`));
 
   log.info("redis connected");
diff --git a/sample.env b/sample.env
index a83d637a..7e3cf430 100644
--- a/sample.env
+++ b/sample.env
@@ -14,6 +14,9 @@ CELLULOID_PG_PASSWORD=USE_A_STRONGER_PASSWORD
 # Postgres connection pool config. Change at your own risk.
 CELLULOID_PG_MAX_POOL_SIZE=20
 CELLULOID_PG_IDLE_TIMEOUT=30000
+
+# Redis URL
+CELLULOID_REDIS_URL=
 # Cookie secret key. Generate something random and long.
 CELLULOID_COOKIE_SECRET=c7gGEvPZfke5aDN626E13Voo8NmUoxix
 # email params. Check with your SMTP provider