diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 03c5fca..2e1a2be 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -5,10 +5,13 @@
   "build": { "dockerfile": "Dockerfile" },
   "secrets": {
     "STENCILA_API_TOKEN": {
-      "description": "Add your Stencila Cloud API token",
+      "description": "If you have a Stencila Cloud API token, enter it here to enable extra features, or add one later via the Stencila menu within the Codespace",
       "documentationUrl": "https://stencila.cloud/access-tokens"
     }
   },
+  "hostRequirements": {
+    "memory": "16gb"
+  },
   "customizations": {
     "vscode": {
       "extensions": ["stencila.stencila"],