diff --git a/README.md b/README.md
index 796ce87..c4ca216 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,12 @@ Use pytest to run tests.
```bash
python -m pytest tests/
+```
+
+If you would like to update the snapshot tests, you can use the following command.
+
+```bash
+python -m pytest tests/ --update-snapshot
```
# License
diff --git a/tests/snapshots/goodbye-cruel-world.snapshot.html b/tests/snapshots/goodbye-cruel-world.snapshot.html
index 6461127..1e22415 100644
--- a/tests/snapshots/goodbye-cruel-world.snapshot.html
+++ b/tests/snapshots/goodbye-cruel-world.snapshot.html
@@ -306,6 +306,8 @@