diff --git a/CHANGELOG.md b/CHANGELOG.md
index b4217b6..b32bf81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 4.0.1
+
+- fix: Change `r` property name to `relevance` in `HighlightResult` interface, closes [#84](https://github.com/MurhafSousli/ngx-highlightjs/issues/84) in [ce53661](https://github.com/MurhafSousli/ngx-highlightjs/commit/ce536614179a97dbd26a35bd40dd5226f8d6a408).
+- fix: Sanitize highlighted code before appending it to the DOM, closes [#101](https://github.com/MurhafSousli/ngx-highlightjs/issues/101) in [9afe6b6](https://github.com/MurhafSousli/ngx-highlightjs/pull/103/commits/9afe6b661255c4e8d6569dec3370843eb34d16de).
+- fix: Check if `nativeElement.firstChildElement` is not null before calling line numbers lib, in [494c976](https://github.com/MurhafSousli/ngx-highlightjs/pull/104/commits/494c97616fc6e1b9e965e3910a51214d86837a39).
+
 ## 4.0.0
 
 - feat: Lazy-load **hljs** library, closes [#89](https://github.com/MurhafSousli/ngx-highlightjs/issues/89) in [8cdba13](https://github.com/MurhafSousli/ngx-highlightjs/pull/88/commits/8cdba13d72e563a2189b816d41f959e3dc18be21).
diff --git a/projects/ngx-highlightjs/package.json b/projects/ngx-highlightjs/package.json
index 440afad..9b1dbee 100644
--- a/projects/ngx-highlightjs/package.json
+++ b/projects/ngx-highlightjs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ngx-highlightjs",
-  "version": "4.0.0",
+  "version": "4.0.1",
   "description": "Instant code highlighting, auto-detect language, super easy to use.",
   "homepage": "http://github.com/murhafsousli/ngx-highlightjs",
   "author": {
diff --git a/projects/ngx-highlightjs/src/lib/highlight.ts b/projects/ngx-highlightjs/src/lib/highlight.ts
index 3a29ca1..a06d759 100644
--- a/projects/ngx-highlightjs/src/lib/highlight.ts
+++ b/projects/ngx-highlightjs/src/lib/highlight.ts
@@ -89,7 +89,7 @@ export class Highlight implements OnChanges {
       // If lines count is 1, the line numbers library will not add numbers
       // Observe changes to add 'hljs-line-numbers' class only when line numbers is added to the code element
       this._lineNumbersObs = new MutationObserver(() => {
-        if (this._nativeElement.firstElementChild.tagName.toUpperCase() === 'TABLE') {
+        if (this._nativeElement.firstElementChild && this._nativeElement.firstElementChild.tagName.toUpperCase() === 'TABLE') {
           this._nativeElement.classList.add('hljs-line-numbers');
         }
         this.destroyLineNumbersObserver();