diff --git a/reana_server/config.py b/reana_server/config.py
index a3e5eda6..a38259f9 100644
--- a/reana_server/config.py
+++ b/reana_server/config.py
@@ -136,8 +136,10 @@ def _(x):
 # Accounts
 # ========
 #: Redis URL
-ACCOUNTS_SESSION_REDIS_URL = "redis://{host}:6379/1".format(
-    host=REANA_INFRASTRUCTURE_COMPONENTS_HOSTNAMES["cache"]
+REANA_CACHE_PASSWORD = os.getenv("REANA_CACHE_PASSWORD", "")
+ACCOUNTS_SESSION_REDIS_URL = "redis://:{password}@{host}:6379/1".format(
+    password=REANA_CACHE_PASSWORD,
+    host=REANA_INFRASTRUCTURE_COMPONENTS_HOSTNAMES["cache"],
 )
 #: Email address used as sender of account registration emails.
 SECURITY_EMAIL_SENDER = SUPPORT_EMAIL