diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index bffe4f0..b8b0c5d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,6 +10,7 @@ on:
 jobs:
   test:
     strategy:
+      fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest]
         python-version:
diff --git a/pytest_github_actions_annotate_failures/plugin.py b/pytest_github_actions_annotate_failures/plugin.py
index cc16ae7..ae23581 100644
--- a/pytest_github_actions_annotate_failures/plugin.py
+++ b/pytest_github_actions_annotate_failures/plugin.py
@@ -1,6 +1,7 @@
 
 from __future__ import annotations
 
+import contextlib
 import os
 import sys
 from typing import TYPE_CHECKING
@@ -111,7 +112,8 @@ def pytest_warning_recorded(self, warning_message, when, nodeid, location):  # n
             if not rel_path.startswith(".."):
                 filesystempath = rel_path
         else:
-            filesystempath = os.path.relpath(filesystempath)
+            with contextlib.suppress(ValueError):
+                filesystempath = os.path.relpath(filesystempath)
 
         workflow_command = _build_workflow_command(
             "warning",