diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 0e7831d..06bf065 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -68,7 +68,6 @@ jobs:
           strip: true
 
       - name: Package zip
-        #        if: startsWith(github.ref, 'refs/tags/')
         run: |
           make package PLATFORM=${{ matrix.platform.release_for }} TARGET=${{ matrix.platform.target }}
 
diff --git a/Cargo.lock b/Cargo.lock
index 945bc0b..8b7dcb4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,6 +2,15 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "aho-corasick"
+version = "1.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e60d3430d3a69478ad0993f19238d2df97c507009a52b3c10addcd7f6bcb916"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "anstream"
 version = "0.6.15"
@@ -165,12 +174,19 @@ version = "0.4.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78b3ae25bc7c8c38cec158d1f2757ee79e9b3740fbc7ccf0e59e4b08d793fa89"
 
+[[package]]
+name = "memchr"
+version = "2.7.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
+
 [[package]]
 name = "mtoc"
-version = "0.4.0"
+version = "0.4.1"
 dependencies = [
  "clap",
  "colored",
+ "regex",
  "tempfile",
  "walkdir",
 ]
@@ -199,6 +215,35 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "regex"
+version = "1.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "38200e5ee88914975b69f657f0801b6f6dccafd44fd9326302a4aaeecfacb1d8"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "368758f23274712b504848e9d5a6f010445cc8b87a7cdb4d7cbee666c1288da3"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
+
 [[package]]
 name = "rustix"
 version = "0.38.37"
diff --git a/Cargo.toml b/Cargo.toml
index f380b95..132dd75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mtoc"
-version = "0.4.0"
+version = "0.4.1"
 edition = "2021"
 authors = ["containerscrew info@containerscrew.com"]
 repository = "https://github.com/containerscrew/mtoc"
@@ -13,3 +13,4 @@ clap = { version = "4.5.20", features = ["derive"] }
 tempfile = "3.13.0"
 colored = "2.1.0"
 walkdir = "2.5.0"
+regex = "1.11.0"
diff --git a/docs/test.md b/docs/test.md
index 8c04b38..f0483b2 100644
--- a/docs/test.md
+++ b/docs/test.md
@@ -5,6 +5,7 @@ DO NOT REMOVE THIS!
 - [Test 1](#test-1)
   - [Test 2](#test-2)
     - [Test 3](#test-3)
+      - [Test: testing testing](#test:-testing-testing)
 <!-- END OF TOC -->
 
 # Test 1
@@ -13,6 +14,9 @@ DO NOT REMOVE THIS!
 
 ### Test 3
 
+#### Test: testing testing
+
+
 ```markdown
 # Hello
 ## World
diff --git a/src/write.rs b/src/write.rs
index e6b11da..1048a4a 100644
--- a/src/write.rs
+++ b/src/write.rs
@@ -1,3 +1,5 @@
+use regex::Regex;
+
 // Generate a table of contents from the headers
 pub fn generate_toc(headers: Vec<(usize, String)>) -> String {
     let mut toc = String::new();
@@ -5,11 +7,17 @@ pub fn generate_toc(headers: Vec<(usize, String)>) -> String {
     toc.push_str(
         "**Table of Contents**  *generated with [mtoc](https://github.com/containerscrew/mtoc)*\n",
     );
+
+    // Regex to match and remove or replace unwanted characters
+    let re = Regex::new(r"[^a-zA-Z0-9-_ ]").unwrap();
+
     for (level, header) in headers {
         let indent = "  ".repeat(level - 1);
-        let anchor = header.to_lowercase().replace(" ", "-");
+        let sanitized_header = re.replace_all(&header.to_lowercase(), "").to_string();
+        let anchor = sanitized_header.replace(" ", "-");
         toc.push_str(&format!("{}- [{}](#{})\n", indent, header, anchor));
     }
+
     toc.push_str("<!-- END OF TOC -->");
     toc
 }