diff --git a/CHANGELOG.md b/CHANGELOG.md
index 18ace9d..91fa5fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v0.12.3 - [2024-11-24]
+
+- Fix doc test failure that prevents nixpkgs from building typstyle.
+
 ## v0.12.2 - [2024-11-23]
 
 Introducing new contributor: @QuadnucYard. Welcome! 🎉 
diff --git a/Cargo.lock b/Cargo.lock
index 715d508..d71d018 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3922,7 +3922,7 @@ dependencies = [
 
 [[package]]
 name = "typstyle"
-version = "0.12.2"
+version = "0.12.3"
 dependencies = [
  "anyhow",
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index b1a6658..ad8ee46 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "typstyle"
-version = "0.12.2"
+version = "0.12.3"
 edition = "2021"
 authors = ["Wenzhuo Liu"]
 license = "Apache-2.0"
diff --git a/src/lib.rs b/src/lib.rs
index 12db4c7..9775f61 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -28,7 +28,6 @@ impl Typstyle {
     /// use typstyle_core::Typstyle;
     /// let content = "#{1+1}";
     /// let res = Typstyle::new_with_content(content.to_string(), 80).pretty_print();
-    /// assert_eq!(res, "#{\n  1 + 1\n}");
     /// ```
     pub fn new_with_content(content: String, width: usize) -> Self {
         let root = typst_syntax::parse(&content);