diff --git a/CHANGELOG.md b/CHANGELOG.md
index 747deb5d2..5e674fd96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 ## 1.63.4
 
+### JavaScript API
+
+* Properly export the legacy API values `TRUE`, `FALSE`, `NULL`, and `types` from
+  the ECMAScript module API.
+
 ### Embedded Sass
 
 * Fix a race condition where closing standard input while requests are in-flight
diff --git a/tool/grind.dart b/tool/grind.dart
index 84bec47c6..464bbeb52 100644
--- a/tool/grind.dart
+++ b/tool/grind.dart
@@ -71,6 +71,10 @@ void main(List<String> args) {
     'info',
     'render',
     'renderSync',
+    'TRUE',
+    'FALSE',
+    'NULL',
+    'types',
   };
 
   pkg.githubReleaseNotes.fn = () =>