diff --git a/CHANGELOG.md b/CHANGELOG.md
index b045691..593d139 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## v0.18.1
+
+### What's New
+
+- Ensure tokenizer sizers with truncation parameters count their overflow encodings
+
 ## v0.18.0
 
 ### Breaking
diff --git a/Cargo.lock b/Cargo.lock
index a58cee9..dc6a064 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1882,7 +1882,7 @@ dependencies = [
 
 [[package]]
 name = "semantic-text-splitter"
-version = "0.18.0"
+version = "0.18.1"
 dependencies = [
  "pyo3",
  "text-splitter",
@@ -2132,7 +2132,7 @@ dependencies = [
 
 [[package]]
 name = "text-splitter"
-version = "0.18.0"
+version = "0.18.1"
 dependencies = [
  "ahash",
  "auto_enums",
diff --git a/Cargo.toml b/Cargo.toml
index 547646b..d48738f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,7 @@
 members = ["bindings/*"]
 
 [workspace.package]
-version = "0.18.0"
+version = "0.18.1"
 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."
@@ -66,7 +66,7 @@ either = "1.6"
 itertools = "0.13"
 once_cell = "1.20"
 pulldown-cmark = { version = "0.12", default-features = false, optional = true }
-regex = "1.11.1"
+regex = "1.10.6"
 rust_tokenizers = { version = "8", optional = true }
 strum = { version = "0.26", features = ["derive"] }
 thiserror = "1.0.65"