diff --git a/README.md b/README.md
index 6a0f96a..64829f2 100644
--- a/README.md
+++ b/README.md
@@ -148,6 +148,20 @@ You will need a running instance of [Chia Wallet](https://www.chia.net/downloads
   npm run package-mac
   ```
 
+### Updating Submodule
+
+Updating the Climate Token Driver is done with standard git commands and is documented here for easy reference:
+
+1.  Create new branch `git checkout -b update-token-driver`
+2.  Change into climate-token-driver directory `cd climate-token-driver`
+3.  `git pull`
+4.  Checkout a commit or a tag. Tagged releases preferable `git checkout 1.0.40`
+5.  `cd ..`
+6.  `git add climate-token-driver`
+7.  Commit the updated submodule `git commit -m "chore: update climate token driver submodule"`
+8.  `git push`
+
+
 ## Contributing
 
 [Signed commits](https://docs.github.com/en/authentication/managing-commit-signature-verification/signing-commits) are required.
diff --git a/climate-token-driver b/climate-token-driver
index f0079fa..39ff324 160000
--- a/climate-token-driver
+++ b/climate-token-driver
@@ -1 +1 @@
-Subproject commit f0079fa2a9c4603629f6763a5e3489e469f3ee17
+Subproject commit 39ff3245846e9d253eac6e10cc6ae53f38b31742