diff --git a/pkgs/development/python-modules/funcparserlib/default.nix b/pkgs/development/python-modules/funcparserlib/default.nix
index 19e2dd146d20..3ace04b108d4 100644
--- a/pkgs/development/python-modules/funcparserlib/default.nix
+++ b/pkgs/development/python-modules/funcparserlib/default.nix
@@ -1,25 +1,47 @@
 { lib
 , buildPythonPackage
-, fetchPypi
+, fetchFromGitHub
+, fetchpatch
+, poetry-core
 , python
-, isPy3k
+, pytestCheckHook
+, pythonOlder
 }:
 
 buildPythonPackage rec {
   pname = "funcparserlib";
-  version = "0.3.6";
+  version = "1.0.0a0";
+  format = "pyproject";
 
-  src = fetchPypi {
-    inherit pname version;
-    sha256 = "b7992eac1a3eb97b3d91faa342bfda0729e990bd8a43774c1592c091e563c91d";
+  disabled = pythonOlder "3.6";
+
+  src = fetchFromGitHub {
+    owner = "vlasovskikh";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-YfcboKjyc5ASzrp0duu2R6psf51MGZIeZ0owo5QNSnU=";
   };
 
-  checkPhase = ''
-    ${python.interpreter} -m unittest discover
-  '';
+  nativeBuildInputs = [
+    poetry-core
+  ];
 
-  # Tests are Python 2.x only judging from SyntaxError
-  doCheck = !(isPy3k);
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  patches = [
+    # Support for poetry-core, https://github.com/vlasovskikh/funcparserlib/pull/73
+    (fetchpatch {
+      name = "support-poetry-core.patch";
+      url = "https://github.com/vlasovskikh/funcparserlib/commit/61ed558fc146b7a30879919325dfa8aae77be556.patch";
+      sha256 = "sha256-tqdR3r4/t7RWBYZeAabaN7oYf6VxkVVz006XICX9rYI=";
+    })
+  ];
+
+  pythonImportsCheck = [
+    "funcparserlib"
+  ];
 
   meta = with lib; {
     description = "Recursive descent parsing library based on functional combinators";
@@ -27,5 +49,4 @@ buildPythonPackage rec {
     license = licenses.mit;
     platforms = platforms.unix;
   };
-
 }