diff --git a/CHANGES.md b/CHANGES.md
index 9925c1e800..8774f6ccc4 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,10 @@
+## Version 11.5.1
+
+Packaging:
+
+- (chore) explicitly set `sideEffect` for css and scss files, fixes #3504
+
+
## Version 11.5.0
Themes:
diff --git a/README.md b/README.md
index 39e7743d6b..d432a224a1 100644
--- a/README.md
+++ b/README.md
@@ -328,20 +328,20 @@ see [DIGESTS.md](https://github.com/highlightjs/cdn-release/blob/main/DIGESTS.md
##### Common JS
```html
-
-
+
+
-
+
```
##### ES6 Modules
````html
-
+
@@ -353,20 +353,20 @@ hljs.registerLanguage('go', go);
##### Common JS
```html
-
-
+
+
-
+
```
##### ES6 Modules
```html
-
+
```
@@ -376,20 +376,20 @@ hljs.registerLanguage('go', go);
##### Common JS
```html
-
-
+
+
-
+
```
##### ES6 Modules
```html
-
+
```
diff --git a/docs/conf.py b/docs/conf.py
index a191d91276..1a66901b37 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -53,7 +53,7 @@
# built documents.
# The full version, including alpha/beta/rc tags.
-release = '11.5.0'
+release = '11.5.1'
# The short X.Y version.
version = ".".join(release.split(".")[:2])
diff --git a/package-lock.json b/package-lock.json
index 0e6d4bf6ec..e3178116cd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
{
"name": "highlight.js",
- "version": "11.5.0",
+ "version": "11.5.1",
"lockfileVersion": 2,
"requires": true,
"packages": {
"": {
"name": "highlight.js",
- "version": "11.5.0",
+ "version": "11.5.1",
"license": "BSD-3-Clause",
"devDependencies": {
"@colors/colors": "^1.5.0",
diff --git a/package.json b/package.json
index 3aa4b15ab2..b0d09e8ba3 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
"syntax"
],
"homepage": "https://highlightjs.org/",
- "version": "11.5.0",
+ "version": "11.5.1",
"author": {
"name": "Ivan Sagalaev",
"email": "maniac@softwaremaniacs.org"