diff --git a/CHANGELOG b/CHANGELOG
index ff0b76e..6d716be 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,7 @@
 v0.7 (unreleased):
 
 - Fixed parsing of leading zeros in named HTML entities. (#288)
+- Fixed memory leak parsing tags. (#303)
 
 v0.6.4 (released February 14, 2022):
 
diff --git a/docs/changelog.rst b/docs/changelog.rst
index e63c785..21007c3 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -9,6 +9,8 @@ Unreleased
 
 - Fixed parsing of leading zeros in named HTML entities.
   (`#288 <https://github.com/earwig/mwparserfromhell/issues/288>`_)
+- Fixed memory leak parsing tags.
+  (`#303 <https://github.com/earwig/mwparserfromhell/issues/303>`_)
 
 v0.6.4
 ------