diff --git a/pkgs/development/tools/prospector/default.nix b/pkgs/development/tools/prospector/default.nix
index 38472ce86f01..2f58737637f6 100644
--- a/pkgs/development/tools/prospector/default.nix
+++ b/pkgs/development/tools/prospector/default.nix
@@ -1,55 +1,41 @@
 { lib
 , pkgs
-, python
+, python3
 }:
 
 let
-  py = python.override {
-    packageOverrides = self: super: {
-      pep8-naming = super.pep8-naming.overridePythonAttrs(oldAttrs: rec {
-        version = "0.4.1";
-        src = oldAttrs.src.override {
-          inherit version;
-          sha256 = "0nhf8p37y008shd4f21bkj5pizv8q0l8cpagyyb8gr059d6gvvaf";
-        };
-      });
-    };
-  };
-  setoptconf = py.pkgs.callPackage ./setoptconf.nix { };
+  setoptconf-tmp = python3.pkgs.callPackage ./setoptconf.nix { };
 in
 
-with py.pkgs;
+with python3.pkgs;
 
 buildPythonApplication rec {
   pname = "prospector";
-  version = "1.2.0";
-  disabled = isPy27;
+  version = "1.5.1";
+  format = "pyproject";
+  disabled = pythonOlder "3.6.1";
 
   src = pkgs.fetchFromGitHub {
     owner = "PyCQA";
     repo = pname;
     rev = version;
-    sha256 = "07kb37zrrsriqzcmli0ghx7qb1iwkzh83qsiikl9jy50faby2sjg";
+    sha256 = "17f822cxrvcvnrzdx1a9fyi9afljq80b6g6z1k2bqa1vs21gwv7l";
   };
 
-  checkInputs = [
-    pytest
+  postPatch = ''
+    substituteInPlace pyproject.toml \
+      --replace 'pep8-naming = ">=0.3.3,<=0.10.0"' 'pep8-naming = "*"'
+  '';
+
+  nativeBuildInputs = [
+    poetry-core
   ];
 
-  checkPhase = ''
-    pytest
-  '';
-
-  patchPhase = ''
-    substituteInPlace setup.py \
-      --replace 'pycodestyle<=2.4.0' 'pycodestyle<=2.5.0'
-  '';
-
   propagatedBuildInputs = [
-    astroid
-    django
+    bandit
     dodgy
     mccabe
+    mypy
     pep8-naming
     pycodestyle
     pydocstyle
@@ -58,9 +44,18 @@ buildPythonApplication rec {
     pylint-celery
     pylint-django
     pylint-flask
+    pylint-plugin-utils
+    pyroma
     pyyaml
     requirements-detector
-    setoptconf
+    setoptconf-tmp
+    setuptools
+    toml
+    vulture
+  ];
+
+  checkInputs = [
+    pytestCheckHook
   ];
 
   meta = with lib; {
diff --git a/pkgs/development/tools/prospector/setoptconf.nix b/pkgs/development/tools/prospector/setoptconf.nix
index 62b4e95357dc..1d0f06a57e77 100644
--- a/pkgs/development/tools/prospector/setoptconf.nix
+++ b/pkgs/development/tools/prospector/setoptconf.nix
@@ -4,19 +4,19 @@
 }:
 
 buildPythonPackage rec {
-  pname = "setoptconf";
-  version = "0.2.0";
+  pname = "setoptconf-tmp";
+  version = "0.3.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "177l7j68j751i781bgk6pfhxjj7hwqxzdm2ja5fkywbp0275s2sv";
+    sha256 = "0y2pgpraa36wzlzkxigvmz80mqd3mzcc9wv2yx9bliqks7fhlj70";
   };
 
   # Base tests provided via PyPi are broken
   doCheck = false;
 
   meta = with lib; {
-    homepage = "https://pypi.org/project/setoptconf";
+    homepage = "https://pypi.org/project/setoptconf-tmp";
     description = "A module for retrieving program settings from various sources in a consistant method";
     license = licenses.mit;
     maintainers = with maintainers; [
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 7fbbf150eee8..1a363fa6a62f 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -18591,9 +18591,7 @@ with pkgs;
     buildPythonApplication click future six;
   };
 
-  prospector = callPackage ../development/tools/prospector {
-    python = python37;
-  };
+  prospector = callPackage ../development/tools/prospector { };
 
   protobuf = protobuf3_18;