diff --git a/internal/rukpak/source/containers_image.go b/internal/rukpak/source/containers_image.go
index 132f6fcd3..76c5812c8 100644
--- a/internal/rukpak/source/containers_image.go
+++ b/internal/rukpak/source/containers_image.go
@@ -123,6 +123,12 @@ func (i *ContainersImageRegistry) Unpack(ctx context.Context, bundle *BundleSour
 	//////////////////////////////////////////////////////
 	if _, err := copy.Image(ctx, policyContext, layoutRef, dockerRef, &copy.Options{
 		SourceCtx: srcCtx,
+		// We use the OCI layout as a temporary storage and
+		// pushing signatures for OCI images is not supported
+		// so we remove the source signatures when copying.
+		// Signature validation will still be performed
+		// accordingly to a provided policy context.
+		RemoveSignatures: true,
 	}); err != nil {
 		return nil, fmt.Errorf("error copying image: %w", err)
 	}