diff --git a/CHANGELOG.md b/CHANGELOG.md
index 15b531cb..ce72e8ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 4.18.3
+
+- For smaller screens (<768px) ensure that the GOVUK.StickAtTopWhenScrolling JS "unsticks" the element which was previously "stuck" (by removing both the class which sets fixed positioning and the shim). ([PR #329](https://github.com/alphagov/govuk_frontend_toolkit/pull/329))
+
 # 4.18.2
 
 - Remove unnecessary print font fallback that causes regression downstream ([PR #328](https://github.com/alphagov/govuk_frontend_toolkit/pull/328))
diff --git a/VERSION.txt b/VERSION.txt
index 8c8da9f4..aa827155 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-4.18.2
+4.18.3