diff --git a/pkgs/development/tools/rust/maturin/default.nix b/pkgs/development/tools/rust/maturin/default.nix
index 8780b8892fa1..4b66ecfa4674 100644
--- a/pkgs/development/tools/rust/maturin/default.nix
+++ b/pkgs/development/tools/rust/maturin/default.nix
@@ -9,16 +9,16 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "maturin";
-  version = "1.2.2";
+  version = "1.2.3";
 
   src = fetchFromGitHub {
     owner = "PyO3";
     repo = "maturin";
     rev = "v${version}";
-    hash = "sha256-uaDTL6dfH+zqjMbLtgLaZRe91mDuyKA0afw+3LFF+1U=";
+    hash = "sha256-hxtT5cL1PTXkTXGB0nVPhMI8Vlqrk4q2MHW0KGosFwc=";
   };
 
-  cargoHash = "sha256-DF8O3YrHr0tBStnmnUUUF4QaZcoXYCCweZoEig4etQA=";
+  cargoHash = "sha256-IZWh/Bp9TdB+flc1PXVkwrIdOr83TFk6X6O5M0FVaO4=";
 
   buildInputs = lib.optionals stdenv.isDarwin [ Security libiconv ];