diff --git a/CHANGELOG.md b/CHANGELOG.md
index dbd7fc6..fed98ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 6.4.1 (2023-04-13)
+
+### Bug fixes
+
+Fix a bug where tokenizing of block comments got confused when nested comment start/end markers appeared directly next to each other.
+
 ## 6.4.0 (2023-01-23)
 
 ### Bug fixes
diff --git a/package.json b/package.json
index eb66ea4..180320a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@codemirror/lang-sql",
-  "version": "6.4.0",
+  "version": "6.4.1",
   "description": "SQL language support for the CodeMirror code editor",
   "scripts": {
     "test": "cm-runtests",