diff --git a/pkgs/development/python-modules/clvm-rs/default.nix b/pkgs/development/python-modules/clvm-rs/default.nix
index 231ae47cddc8..7ea85e41476e 100644
--- a/pkgs/development/python-modules/clvm-rs/default.nix
+++ b/pkgs/development/python-modules/clvm-rs/default.nix
@@ -9,31 +9,6 @@
 , pkgs
 }:
 
-let
-  # clvm-rs does not work with maturin 0.12
-  # https://github.com/Chia-Network/clvm_rs/commit/32fba40178a5440a1306623f47d8b0684ae2339a#diff-50c86b7ed8ac2cf95bd48334961bf0530cdc77b5a56f852c5c61b89d735fd711
-  maturin_0_11 = with pkgs; rustPlatform.buildRustPackage rec {
-    pname = "maturin";
-    version = "0.11.5";
-    src = fetchFromGitHub {
-      owner = "PyO3";
-      repo = "maturin";
-      rev = "v${version}";
-      hash = "sha256-hwc6WObcJa6EXf+9PRByUtiupMMYuXThA8i/K4rl0MA=";
-    };
-    cargoHash = "sha256-qGCEfKpQwAC57LKonFnUEgLW4Cc7HFJgSyUOzHkKN9c=";
-
-
-    nativeBuildInputs = [ pkg-config ];
-
-    buildInputs = lib.optionals stdenv.isLinux [ dbus ]
-      ++ lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Security libiconv ];
-
-    # Requires network access, fails in sandbox.
-    doCheck = false;
-  };
-in
-
 buildPythonPackage rec {
   pname = "clvm_rs";
   version = "0.1.19";
@@ -58,7 +33,6 @@ buildPythonPackage rec {
 
   nativeBuildInputs = [
     perl # used by openssl-sys to configure
-    maturin_0_11
   ] ++ (with rustPlatform; [
     cargoSetupHook
     maturinBuildHook