diff --git a/cargo_config b/cargo_config
deleted file mode 100644
index 6fb4ff4..0000000
--- a/cargo_config
+++ /dev/null
@@ -1,5 +0,0 @@
-[source.crates-io]
-replace-with = "vendored-sources"
-
-[source.vendored-sources]
-directory = "vendor"
\ No newline at end of file
diff --git a/maturin-1.3.2.tar.gz b/maturin-1.3.2.tar.gz
deleted file mode 100644
index 8c0a08b..0000000
--- a/maturin-1.3.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:952d458b3dea01e9670582ac2dff3c522a34e491f08ed6376b270655a68c24af
-size 176116
diff --git a/maturin-1.4.0.tar.gz b/maturin-1.4.0.tar.gz
new file mode 100644
index 0000000..b689907
--- /dev/null
+++ b/maturin-1.4.0.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ed12e1768094a7adeafc3a74ebdb8dc2201fa64c4e7e31f14cfc70378bf93790
+size 177999
diff --git a/python-maturin.changes b/python-maturin.changes
index d093679..9c794ac 100644
--- a/python-maturin.changes
+++ b/python-maturin.changes
@@ -1,3 +1,36 @@
+-------------------------------------------------------------------
+Mon Dec 11 13:45:20 UTC 2023 - Mia Herkt <mia@0x0.st>
+
+- Update to 1.4.0
+  * Fix two tiny typos in README.md!
+    gh#PyO3/maturin#1853
+  * Bump MSRV to 1.67
+    gh#PyO3/maturin#1847
+  * Tiny tweak: Use Rust markdown block
+    gh#PyO3/maturin#1855
+  * Recommend using pipx to install maturin
+    gh#PyO3/maturin#1859
+  * [pre-commit.ci] pre-commit autoupdate
+    gh#PyO3/maturin#1860
+  * Update cargo-options to 0.7.1
+    gh#PyO3/maturin#1862
+  * Add support for cross compiling with cross
+    gh#PyO3/maturin#1865
+  * Bump the crates-io group with 8 updates
+    gh#PyO3/maturin#1866
+  * [pre-commit.ci] pre-commit autoupdate
+    gh#PyO3/maturin#1867
+  * Bump openssl from 0.10.59 to 0.10.60
+    gh#PyO3/maturin#1868
+  * Bump actions/github-script from 6 to 7
+    gh#PyO3/maturin#1873
+  * Bump conda-incubator/setup-miniconda from 2 to 3
+    gh#PyO3/maturin#1872
+  * Bump mymindstorm/setup-emsdk from 12 to 13
+    gh#PyO3/maturin#1871
+  * Update rustls-pemfile to 2.0.0
+    gh#PyO3/maturin#1874
+
 -------------------------------------------------------------------
 Tue Nov 14 18:51:32 UTC 2023 - Mia Herkt <mia@0x0.st>
 
diff --git a/python-maturin.spec b/python-maturin.spec
index 1ba1601..37ab679 100644
--- a/python-maturin.spec
+++ b/python-maturin.spec
@@ -18,14 +18,13 @@
 
 %{?sle15_python_module_pythons}
 Name:           python-maturin
-Version:        1.3.2
+Version:        1.4.0
 Release:        0
 Summary:        Rust/Python Interoperability
 License:        Apache-2.0 OR MIT
 URL:            https://github.com/PyO3/maturin
 Source:         https://files.pythonhosted.org/packages/source/m/maturin/maturin-%{version}.tar.gz
 Source1:        vendor.tar.xz
-Source2:        cargo_config
 BuildRequires:  %{python_module base >= 3.7}
 BuildRequires:  %{python_module pip}
 BuildRequires:  %{python_module setuptools-rust >= 1.4.0}
@@ -52,8 +51,6 @@ setuptools-rust milksnake. It supports building wheels for Python
 
 %prep
 %autosetup -a1 -p1 -n maturin-%{version}
-mkdir .cargo
-cp %{SOURCE2} .cargo/config
 sed -i '1{/env python/d}' maturin/__init__.py
 sed -i 's/--locked/--offline/' setup.py
 
diff --git a/vendor.tar.xz b/vendor.tar.xz
index 9277710..ebdf7f5 100644
--- a/vendor.tar.xz
+++ b/vendor.tar.xz
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:03be9c5a4ec66a17f4235840c5737bbb3d8d579038292ff63c8f380a98d546ff
-size 32982764
+oid sha256:9faefcd952f08cb38d52309f4727b42878fe75688be24f49a6b839d7586572f9
+size 31072232