diff --git a/conda_lock/conda_lock.py b/conda_lock/conda_lock.py
index 52a3ac608..bf8826d20 100644
--- a/conda_lock/conda_lock.py
+++ b/conda_lock/conda_lock.py
@@ -740,9 +740,7 @@ def create_lockfile_from_spec(
             content_hash=spec.content_hash(),
             channels=[c for c in spec.channels],
             platforms=spec.platforms,
-            sources=[
-                relative_path(lockfile_path.parent, source) for source in spec.sources
-            ],
+            sources=[str(source.resolve()) for source in spec.sources],
         ),
     )