1 files changed, 10 insertions, 6 deletions
diff --git a/pkgs/development/python-modules/pykwalify/default.nix b/pkgs/development/python-modules/pykwalify/default.nix
index 790b41626bf0c..a49967ee6c3e3 100644
--- a/pkgs/development/python-modules/pykwalify/default.nix
+++ b/pkgs/development/python-modules/pykwalify/default.nix
@@ -1,10 +1,10 @@
 { lib
 , buildPythonPackage
+, fetchpatch
 , python-dateutil
 , docopt
 , fetchPypi
 , pytestCheckHook
-, pyyaml
 , ruamel-yaml
 , testfixtures
 }:
@@ -19,10 +19,18 @@ buildPythonPackage rec {
     hash = "sha256-eWsq0+1MuZuIMItTP7L1WcMPpu+0+p/aETR/SD0kWIQ=";
   };
 
+  patches = [
+    # fix test failures with ruamel.yaml 0.18+
+    (fetchpatch {
+      name = "pykwalify-fix-tests-ruamel-yaml-0.18.patch";
+      url = "https://github.com/Grokzen/pykwalify/commit/57bb2ba5c28b6928edb3f07ef581a5a807524baf.diff";
+      hash = "sha256-XUiebDzFSvNrPpRMoc2lv9m+30cfFh0N0rznMiSdQ/0=";
+    })
+  ];
+
   propagatedBuildInputs = [
     python-dateutil
     docopt
-    pyyaml
     ruamel-yaml
   ];
 
@@ -31,10 +39,6 @@ buildPythonPackage rec {
     testfixtures
   ];
 
-  disabledTests = [
-    "test_multi_file_support"
-  ];
-
   pythonImportsCheck = [ "pykwalify" ];
 
   meta = with lib; {