diff --git a/mdbook-0.4.36.tar.gz b/mdbook-0.4.36.tar.gz
deleted file mode 100644
index ef7d5cd..0000000
--- a/mdbook-0.4.36.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:dd47214172ecf95e1b2cbcbebb8428d0b029e0de5dce74204b3c3a91f26223a1
-size 1528538
diff --git a/mdbook-0.4.40.tar.gz b/mdbook-0.4.40.tar.gz
new file mode 100644
index 0000000..ea2ef75
--- /dev/null
+++ b/mdbook-0.4.40.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:550da7ff02ef62c60db6e813b6dbae65b9ed3d491186ea74929536feaceea94b
+size 1536327
diff --git a/mdbook.changes b/mdbook.changes
index 859a39e..0373e0d 100644
--- a/mdbook.changes
+++ b/mdbook.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu Jun  6 00:51:35 UTC 2024 - Soc Virnyl Estela <uncomfy+openbuildservice@uncomfyhalomacro.pl>
+
+- Update to version 0.4.40:
+  * Reverted the update to pulldown-cmark which broke the semver API.
+
 -------------------------------------------------------------------
 Fri Jan 26 12:06:54 UTC 2024 - Soc Virnyl Estela <uncomfy+openbuildservice@uncomfyhalomacro.pl>
 
diff --git a/mdbook.spec b/mdbook.spec
index 4edd83f..7e3a41a 100644
--- a/mdbook.spec
+++ b/mdbook.spec
@@ -17,15 +17,15 @@
 
 
 Name:           mdbook
-Version:        0.4.36
+Version:        0.4.40
 Release:        0
 Summary:        Create books from markdown
 License:        (Apache-2.0 OR MIT) AND Unicode-DFS-2016 AND (Apache-2.0 OR BSL-1.0) AND (Apache-2.0 OR ISC OR MIT) AND (Apache-2.0 OR MIT) AND (Apache-2.0 OR Apache-2.0 WITH LLVM-exception OR MIT) AND (Apache-2.0 OR MIT OR Zlib) AND (MIT OR Unlicense) AND (Apache-2.0 OR Zlib OR MIT) AND Apache-2.0 AND BSD-3-Clause AND CC0-1.0 AND ISC AND MIT AND MPL-2.0
 URL:            https://github.com/rust-lang/mdBook
 Source0:        https://github.com/rust-lang/mdBook/archive/refs/tags/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
 Source1:        vendor.tar.zst
+BuildRequires:  cargo
 BuildRequires:  cargo-packaging
-BuildRequires:  rust+cargo
 BuildRequires:  zstd
 ExclusiveArch:  %{rust_tier1_arches}
 
@@ -36,13 +36,13 @@ mdbook is a utility to create books from Markdown files
 %autosetup -a1 -n mdBook-%{version}
 
 %build
-%{cargo_build} --all-features
+%{cargo_build} --all-features --locked
 
 %install
-%{cargo_install} --all-features
+%{cargo_install} --all-features --locked
 
 %check
-%{cargo_test} --all-features
+%{cargo_test} --all-features --locked
 
 %files
 %license LICENSE
diff --git a/vendor.tar.zst b/vendor.tar.zst
index bda2213..17d0300 100644
--- a/vendor.tar.zst
+++ b/vendor.tar.zst
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:845df6ef06d24112713457114da934a4ce668cdc96d69bca03f7d842ba700197
-size 21545283
+oid sha256:f40d425d4f6ca84b50ac5556805a2d02959bf2efda7146d06718d111140f531a
+size 23208608