diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6021f29..b4115864 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## mdBook 0.4.12
+[14add9c...8b4e488](https://github.com/rust-lang/mdBook/compare/14add9c...8b4e488)
+
+### Changed
+- Reverted the change to update to highlight.js 11, as it broke hidden code lines.
+  [#1597](https://github.com/rust-lang/mdBook/pull/1621)
+ 
 ## mdBook 0.4.11
 [e440094...2cf00d0](https://github.com/rust-lang/mdBook/compare/e440094...2cf00d0)
 
diff --git a/Cargo.lock b/Cargo.lock
index b3009447..51f7cbdd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -780,7 +780,7 @@ checksum = "7ffc5c5338469d4d3ea17d269fa8ea3512ad247247c30bd2df69e68309ed0a08"
 
 [[package]]
 name = "mdbook"
-version = "0.4.11"
+version = "0.4.12"
 dependencies = [
  "ammonia",
  "anyhow",
diff --git a/Cargo.toml b/Cargo.toml
index 73ec2887..4316c0ce 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mdbook"
-version = "0.4.11"
+version = "0.4.12"
 authors = [
     "Mathieu David <mathieudavid@mathieudavid.org>",
     "Michael-F-Bryan <michaelfbryan@gmail.com>",