diff --git a/README.md b/README.md
index 4f58322..0d84089 100644
--- a/README.md
+++ b/README.md
@@ -15,4 +15,11 @@ Clone this repo with `git clone --recurse-submodules https://patience.nearmisses
 
 When pulling, include the submodule with `git pull --recurse-submodules`
 
+## Updating submodule upstream
+To update the embedded submodule to the latest available version:
+1. Run `git submodule init` once to initialise it
+2. Run `git submodule update --remote` to update it
+3. Commit as usual (e.g. `git commit -m "Updated submodule"`)
+
+## Exporting
 To create a release, run [export-pack.sh](export-pack.sh). It will be generated in [release/Tinker's tinkering.mrpack](Tinker's%20tinkering.mrpack)