diff --git a/api/sample.env b/api/sample.env
index 74df93d3fea..4c1b853deee 100644
--- a/api/sample.env
+++ b/api/sample.env
@@ -40,6 +40,15 @@ REDIS_URL=redis://localhost:6379
 # default: none
 # sample (everyday at 06:30 UTC): CACHE_RELOAD_TIME=30 6 * * *
 
+# Cache reload container size
+#
+# If not present, a default size is chosen by Scalingo
+#
+# present: optional
+# type: string (S,M,L,XL,2XL)
+# default: none
+# CACHE_RELOAD_CONTAINER_SIZE=M
+
 # =========
 # DATABASES
 # =========
diff --git a/api/scripts/generate-cron.js b/api/scripts/generate-cron.js
index 144045c83b6..73fe0a1f588 100644
--- a/api/scripts/generate-cron.js
+++ b/api/scripts/generate-cron.js
@@ -3,8 +3,13 @@ const cronContent = {
 };
 
 if (process.env.CACHE_RELOAD_TIME) {
-  cronContent.jobs.push({
+  const cacheReloadJob = {
     command: `${process.env.CACHE_RELOAD_TIME} npm run cache:refresh`,
-  });
+  };
+  if (process.env.CACHE_RELOAD_CONTAINER_SIZE) {
+    cacheReloadJob.size = process.env.CACHE_RELOAD_CONTAINER_SIZE;
+  }
+  cronContent.jobs.push(cacheReloadJob);
 }
+
 console.log(JSON.stringify(cronContent));