diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1572cf9..e094c27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ GeoIP DB to avoid being blocked by security proxies
 system path
 - Fix `SMTP AUTH extension not supported by server` error on some SMTP servers 
 (#12)
+- Always use `\n` as the newline when generating CSVs
 
 3.9.7
 -----
diff --git a/parsedmarc/__init__.py b/parsedmarc/__init__.py
index 013c409..e643f85 100644
--- a/parsedmarc/__init__.py
+++ b/parsedmarc/__init__.py
@@ -624,7 +624,7 @@ def parsed_aggregate_reports_to_csv(reports):
               "envelope_to", "dkim_domains", "dkim_selectors", "dkim_results",
               "spf_domains", "spf_scopes", "spf_results"]
 
-    csv_file_object = StringIO()
+    csv_file_object = StringIO(newline="\n")
     writer = DictWriter(csv_file_object, fields)
     writer.writeheader()