diff --git a/Cargo.lock b/Cargo.lock
index 058a5d5517..ebde334d7d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -691,12 +691,12 @@ dependencies = [
 
 [[package]]
 name = "html5ever"
-version = "0.38.0"
+version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1054432bae2f14e0061e33d23402fbaa67a921d319d56adc6bcf887ddad1cbc2"
+checksum = "46a1761807faccc9a19e86944bbf40610014066306f96edcdedc2fb714bcb7b8"
 dependencies = [
  "log",
- "markup5ever 0.38.0",
+ "markup5ever 0.39.0",
 ]
 
 [[package]]
@@ -951,9 +951,9 @@ dependencies = [
 
 [[package]]
 name = "markup5ever"
-version = "0.38.0"
+version = "0.39.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8983d30f2915feeaaab2d6babdd6bc7e9ed1a00b66b5e6d74df19aa9c0e91862"
+checksum = "7122d987ec5f704ee56f6e5b41a7d93722e9aae27ae07cafa4036c4d3f9757de"
 dependencies = [
  "log",
  "tendril 0.5.0",
@@ -1069,7 +1069,7 @@ dependencies = [
  "font-awesome-as-a-crate",
  "handlebars",
  "hex",
- "html5ever 0.38.0",
+ "html5ever 0.39.0",
  "indexmap",
  "mdbook-core",
  "mdbook-markdown",
diff --git a/Cargo.toml b/Cargo.toml
index 4b40754bb6..bb1a6e2fe1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ futures-util = "0.3.32"
 glob = "0.3.3"
 handlebars = "6.4.0"
 hex = "0.4.3"
-html5ever = "0.38.0"
+html5ever = "0.39.0"
 indexmap = "2.13.0"
 ignore = "0.4.25"
 mdbook-core = { path = "crates/mdbook-core", version = "0.5.2" }