diff --git a/pkgs/development/python-modules/johnnycanencrypt/default.nix b/pkgs/development/python-modules/johnnycanencrypt/default.nix
index 77789fa44db..a0c82902d3e 100644
--- a/pkgs/development/python-modules/johnnycanencrypt/default.nix
+++ b/pkgs/development/python-modules/johnnycanencrypt/default.nix
@@ -1,14 +1,13 @@
 { lib
 , stdenv
-, rustPlatform
 , fetchFromGitHub
-, pipInstallHook
+, buildPythonPackage
+, rustPlatform
 , llvmPackages
 , pkg-config
 , maturin
 , pcsclite
 , nettle
-, python
 , requests
 , vcrpy
 , numpy
@@ -17,7 +16,7 @@
 , PCSC
 }:
 
-rustPlatform.buildRustPackage rec {
+buildPythonPackage rec {
   pname = "johnnycanencrypt";
   version = "0.5.0";
   disabled = pythonOlder "3.7";
@@ -28,7 +27,16 @@ rustPlatform.buildRustPackage rec {
     rev = "v${version}";
     sha256 = "192wfrlyylrpzq70yki421mi1smk8q2cyki2a1d03q7h6apib3j4";
   };
-  cargoPatches = [ ./Cargo.lock.patch ];
+
+  cargoDeps = rustPlatform.fetchCargoTarball {
+    inherit patches src;
+    name = "${pname}-${version}";
+    hash = "sha256-2XhXCKyXVlFgbcOoMy/A5ajiIVxBii56YeI29mO720U=";
+  };
+
+  format = "pyproject";
+
+  patches = [ ./Cargo.lock.patch ];
 
   cargoSha256 = "0ifvpdizcdp2c5x2x2j1bhhy5a75q0pk7a63dmh52mlpmh45fy6r";
 
@@ -42,10 +50,10 @@ rustPlatform.buildRustPackage rec {
   nativeBuildInputs = [
     llvmPackages.clang
     pkg-config
-    python
-    maturin
-    pipInstallHook
-  ];
+  ] ++ (with rustPlatform; [
+    cargoSetupHook
+    maturinBuildHook
+  ]);
 
   buildInputs = [
     pcsclite
@@ -67,17 +75,6 @@ rustPlatform.buildRustPackage rec {
     sed '/project-url = /d' -i Cargo.toml
   '';
 
-  buildPhase = ''
-    runHook preBuild
-    maturin build --release --manylinux off --strip --cargo-extra-args="-j $NIX_BUILD_CORES --frozen"
-    runHook postBuild
-  '';
-
-  installPhase = ''
-    install -Dm644 -t dist target/wheels/*.whl
-    pipInstallPhase
-  '';
-
   preCheck = ''
     export TESTDIR=$(mktemp -d)
     cp -r tests/ $TESTDIR