diff --git a/Dockerfile b/Dockerfile
index 6efcca8..f75098e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM node:10.15.3-alpine
 
 WORKDIR /app/
 
-RUN apk add --no-cache --virtual .build-tools \
+RUN apk update && apk add --no-cache --virtual .build-tools \
         python \
         make \
         g++
diff --git a/app.json b/app.json
index 1dfc27c..1b359c1 100644
--- a/app.json
+++ b/app.json
@@ -11,6 +11,15 @@
     },
     "REDIS_URL": {
       "required": true
+    },
+    "JWT_SECRET": {
+      "generator": "secret"
+    },
+    "SESSION_SECRET": {
+      "generator": "secret"
+    },
+    "SESSION_EXPIRY": {
+      "value": 28800000
     }
   },
   "formation": {