diff --git a/dvc/utils/serialize/_yaml.py b/dvc/utils/serialize/_yaml.py
index 6de2ae4ade..85cee9dbb0 100644
--- a/dvc/utils/serialize/_yaml.py
+++ b/dvc/utils/serialize/_yaml.py
@@ -1,4 +1,5 @@
 import io
+import sys
 from collections import OrderedDict
 from contextlib import contextmanager
 from typing import Any, TextIO
@@ -46,6 +47,8 @@ def _get_yaml():
     from ruamel.yaml import YAML
 
     yaml = YAML()
+    # prevent strings from wrapping for a proper round-trip
+    yaml.width = sys.maxsize
     yaml.default_flow_style = False
 
     # tell Dumper to represent OrderedDict as normal dict