diff --git a/floss/render/default.py b/floss/render/default.py
index eedc46f3f..a3d7aa097 100644
--- a/floss/render/default.py
+++ b/floss/render/default.py
@@ -315,7 +315,7 @@ def get_color(color):
 
 
 def render(results: floss.results.ResultDocument, verbose, disable_headers, color):
-    sys.__stdout__.reconfigure(encoding="utf-8")
+    sys.__stdout__.reconfigure(encoding="utf-8")  # type: ignore [union-attr]
     console = Console(file=io.StringIO(), color_system=get_color(color), highlight=False, soft_wrap=True)
 
     if not disable_headers:
diff --git a/floss/render/json.py b/floss/render/json.py
index d3e87b391..d95900538 100644
--- a/floss/render/json.py
+++ b/floss/render/json.py
@@ -17,7 +17,7 @@ class FlossJSONEncoder(json.JSONEncoder):
 
     def default(self, o):
         if dataclasses.is_dataclass(o):
-            return dataclasses.asdict(o)
+            return dataclasses.asdict(o)  # type: ignore [arg-type]
         if isinstance(o, datetime.datetime):
             return o.isoformat("T") + "Z"
         return super().default(o)
diff --git a/tests/conftest.py b/tests/conftest.py
index 9d4022e5d..cfb1fa2c1 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -154,7 +154,7 @@ def runtest(self):
     def reportinfo(self):
         return self.path, 0, "usecase: %s" % self.name
 
-    def repr_failure(self, excinfo):
+    def repr_failure(self, excinfo):  # type: ignore [override]
         if isinstance(excinfo.value, FLOSSStringsNotExtracted):
             expected = excinfo.value.expected
             got = excinfo.value.got