diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9071e09..45b1b7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+2.3.3
+-----
+
+ * `package.json`: specify `sideEffects: false`
+
 2.3.2
 -----