diff --git a/pkgs/development/python-modules/cyclonedx-python-lib/default.nix b/pkgs/development/python-modules/cyclonedx-python-lib/default.nix
index 731aef1c647f..7704e7b8d5a4 100644
--- a/pkgs/development/python-modules/cyclonedx-python-lib/default.nix
+++ b/pkgs/development/python-modules/cyclonedx-python-lib/default.nix
@@ -6,6 +6,7 @@
 , lxml
 , packageurl-python
 , poetry-core
+, pytestCheckHook
 , python
 , pythonOlder
 , requirements-parser
@@ -14,7 +15,6 @@
 , toml
 , types-setuptools
 , types-toml
-, unittestCheckHook
 , xmldiff
 }:
 
@@ -48,7 +48,7 @@ buildPythonPackage rec {
   ];
 
   checkInputs = [
-    unittestCheckHook
+    pytestCheckHook
     jsonschema
     lxml
     xmldiff
@@ -59,9 +59,17 @@ buildPythonPackage rec {
   ];
 
   preCheck = ''
-    rm tests/test_output_json.py
+    export PYTHONPATH=tests''${PYTHONPATH+:$PYTHONPATH}
   '';
 
+  pytestFlagsArray = [ "tests/" ];
+
+  disabledTests = [
+    # These tests require network access.
+    "test_bom_v1_3_with_metadata_component"
+    "test_bom_v1_4_with_metadata_component"
+  ];
+
   meta = with lib; {
     description = "Python library for generating CycloneDX SBOMs";
     homepage = "https://github.com/CycloneDX/cyclonedx-python-lib";