diff --git a/backend/Dockerfile b/backend/Dockerfile
index 47338b52b..6601d5dd3 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -35,7 +35,9 @@ ENV UXBOX_HTTP_SERVER_DEBUG=false \
     UXBOX_SMTP_SSL=false \
     UXBOX_SMTP_TLS=false \
     UXBOX_SMTP_ENABLED=false \
-    UXBOX_SECRET=youshouldoverwritethiswithsomethingelse
+    # WARNING: this is a default secret key and
+    # it should be overwritten in production env.
+    UXBOX_SECRET=5qjiAn-QUpawUNqGP10UZKklSqbLKcdGY3sJpq0UUACpVXGg2HOFJCBejDWVHskhRyp7iHb4rjOLXX2ZjF-5cw
 
 RUN set -ex; \
     chmod 755 /entrypoint.sh; \
diff --git a/docker-compose.yml b/docker-compose.yml
index df0770a22..6cfd640af 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -51,7 +51,9 @@ services:
             - "UXBOX_SMTP_TLS=false"
             - "UXBOX_SMTP_ENABLED=false"
             # Security setup
-            - "UXBOX_SECRET=youshouldoverwritethiswithsomethingelse"
+            # WARNING: this is a default secret key and
+            # it should be overwritten in production env.
+            - "UXBOX_SECRET=5qjiAn-QUpawUNqGP10UZKklSqbLKcdGY3sJpq0UUACpVXGg2HOFJCBejDWVHskhRyp7iHb4rjOLXX2ZjF-5cw"
         volumes:
             - /srv/uxbox/backend/resources:/srv/uxbox/resources
             - /etc/localtime:/etc/localtime:ro