diff --git a/CHANGELOG.md b/CHANGELOG.md
index f81ad1a0c..e63574650 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Svelte changelog
 
+## 3.6.6
+
+* Prevent dynamic components being detached twice ([#3113](https://github.com/sveltejs/svelte/issues/3113), [#2086](https://github.com/sveltejs/svelte/issues/2086))
+
 ## 3.6.5
 
 * Handle RxJS-style observables with `get` ([#3153](https://github.com/sveltejs/svelte/issues/3153))
diff --git a/package-lock.json b/package-lock.json
index 0b4d23a98..9135e1f14 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "svelte",
-  "version": "3.6.5",
+  "version": "3.6.6",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 74f14a8b5..27f788658 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "svelte",
-  "version": "3.6.5",
+  "version": "3.6.6",
   "description": "Cybernetically enhanced web apps",
   "module": "index.mjs",
   "main": "index",