diff --git a/native/html5ever_nif/Cargo.lock b/native/html5ever_nif/Cargo.lock
index 4673559..fdf4d40 100644
--- a/native/html5ever_nif/Cargo.lock
+++ b/native/html5ever_nif/Cargo.lock
@@ -70,7 +70,7 @@ checksum = "c13771afe0e6e846f1e67d038d4cb29998a6779f93c809212e4e9c32efd244d4"
 dependencies = [
  "log",
  "mac",
- "markup5ever",
+ "markup5ever 0.12.1",
  "proc-macro2",
  "quote",
  "syn",
@@ -82,7 +82,7 @@ version = "0.1.0"
 dependencies = [
  "html5ever",
  "lazy_static",
- "markup5ever",
+ "markup5ever 0.14.0",
  "rustler",
  "tendril",
  "thiserror",
@@ -142,6 +142,20 @@ dependencies = [
  "tendril",
 ]
 
+[[package]]
+name = "markup5ever"
+version = "0.14.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "82c88c6129bd24319e62a0359cb6b958fa7e8be6e19bb1663bc396b90883aca5"
+dependencies = [
+ "log",
+ "phf",
+ "phf_codegen",
+ "string_cache",
+ "string_cache_codegen",
+ "tendril",
+]
+
 [[package]]
 name = "memchr"
 version = "2.7.4"
diff --git a/native/html5ever_nif/Cargo.toml b/native/html5ever_nif/Cargo.toml
index 3d8a6bd..47a3936 100644
--- a/native/html5ever_nif/Cargo.toml
+++ b/native/html5ever_nif/Cargo.toml
@@ -14,7 +14,7 @@ crate-type = ["cdylib"]
 rustler = { version = "0.34", default-features = false, features = ["derive", "nif_version_2_15"] }
 
 html5ever = "0.27"
-markup5ever = "0.12"
+markup5ever = "0.14"
 
 tendril = "0.4"
 lazy_static = "1.5"