diff --git a/CHANGELOG.md b/CHANGELOG.md
index 593d139..f616a62 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.19.0
+
+### Breaking Changes
+
+- Update to tokenizers v0.21
+
 ## v0.18.1
 
 ### What's New
diff --git a/Cargo.lock b/Cargo.lock
index ab96d3b..5acd492 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2019,7 +2019,7 @@ dependencies = [
 
 [[package]]
 name = "semantic-text-splitter"
-version = "0.18.1"
+version = "0.19.0"
 dependencies = [
  "pyo3",
  "text-splitter",
@@ -2286,7 +2286,7 @@ dependencies = [
 
 [[package]]
 name = "text-splitter"
-version = "0.18.1"
+version = "0.19.0"
 dependencies = [
  "ahash",
  "auto_enums",
diff --git a/Cargo.toml b/Cargo.toml
index 876a7ac..afb2f9c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 members = ["bindings/*"]
 
 [workspace.package]
-version = "0.18.1"
+version = "0.19.0"
 authors = ["Ben Brandt <benjamin.j.brandt@gmail.com>"]
 edition = "2021"
 description = "Split text into semantic chunks, up to a desired chunk size. Supports calculating length by characters and tokens, and is callable from Rust and Python."
diff --git a/README.md b/README.md
index 8695a56..24b31f8 100644
--- a/README.md
+++ b/README.md
@@ -203,7 +203,7 @@ There are lots of methods of determining sentence breaks, all to varying degrees
 | ------------------ | ----------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
 | `rust_tokenizers`  | `^8.0.0`          | Enables `(Text/Markdown)Splitter::new` to take any of the provided tokenizers as an argument.                                                                                  |
 | `tiktoken-rs`      | `^0.6.0`          | Enables `(Text/Markdown)Splitter::new` to take `tiktoken_rs::CoreBPE` as an argument. This is useful for splitting text for `OpenAI` models.                                   |
-| `tokenizers`       | `^0.20.0`         | Enables `(Text/Markdown)Splitter::new` to take `tokenizers::Tokenizer` as an argument. This is useful for splitting text models that have a Hugging Face-compatible tokenizer. |
+| `tokenizers`       | `^0.21.0`         | Enables `(Text/Markdown)Splitter::new` to take `tokenizers::Tokenizer` as an argument. This is useful for splitting text models that have a Hugging Face-compatible tokenizer. |
 
 ## Inspiration