diff --git a/srcpkgs/maturin/patches/edition2018.patch b/srcpkgs/maturin/patches/edition2018.patch
deleted file mode 100644
index 7e6b267507..0000000000
--- a/srcpkgs/maturin/patches/edition2018.patch
+++ /dev/null
@@ -1,18 +0,0 @@
-Void can't yet compile with edition2021 and there seems to be no reason to
-demand it, so partially revert
-
-    https://github.com/PyO3/maturin/commit/4d51112a18a331248bb36c0cb5b4c60c6fe0091a
-
-and make maturin work.
-
---- a/Cargo.toml
-+++ b/Cargo.toml
-@@ -10,7 +10,7 @@
- license = "MIT OR Apache-2.0"
- keywords = ["python", "cffi", "packaging", "pypi", "pyo3"]
- categories = ["api-bindings", "development-tools::ffi", "command-line-utilities"]
--edition = "2021"
-+edition = "2018"
- 
- [badges]
- travis-ci = { repository = "PyO3/maturin" }
diff --git a/srcpkgs/maturin/template b/srcpkgs/maturin/template
index d5eb458e50..1556fa8f98 100644
--- a/srcpkgs/maturin/template
+++ b/srcpkgs/maturin/template
@@ -1,6 +1,6 @@
 # Template file for 'maturin'
 pkgname=maturin
-version=0.12.2
+version=0.12.3
 revision=1
 build_style=cargo
 build_helper=qemu
@@ -17,7 +17,7 @@ homepage="https://github.com/PyO3/maturin"
 # bump target-lexicon version if it changes in Cargo.lock
 distfiles="${homepage}/archive/v${version}.tar.gz
  https://github.com/bytecodealliance/target-lexicon/archive/v0.12.2.tar.gz>target-lexicon-${version}.tar.gz"
-checksum="d66d21703a78d71061b279b97fb7dd15a925474da19bce9928d87f1c22550ed6
+checksum="9a6ee17bdee33aa319941ca5000016397a2d5343a17341406150c4015aa81b75
  b6c2ddab7498cf6eab8e637a5b7895f3170b2f9ef989861d1ff33af6c8459b27"
 # Tests use unstable features and fail to build
 make_check=no