From f8323dc45d1affc189b0b9e5b0684b92c1bb18e5 Mon Sep 17 00:00:00 2001
From: Eric Arellano <14852634+Eric-Arellano@users.noreply.github.com>
Date: Mon, 7 Oct 2024 15:33:53 -0400
Subject: [PATCH] Fix concat_release_notes.py on Windows (#1964)

---
 tools/concat_release_notes.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/concat_release_notes.py b/tools/concat_release_notes.py
index 5692d4579..746a3785d 100644
--- a/tools/concat_release_notes.py
+++ b/tools/concat_release_notes.py
@@ -26,14 +26,15 @@ def generate_header(output_file: Path) -> None:
 Qiskit Runtime IBM Client release notes\n\
 =======================================\n\
 \n\
-.. towncrier release notes start\n"
+.. towncrier release notes start\n",
+        "utf-8",
     )
 
 
 def concat_release_notes(output_file: Path, release_notes_paths: list[Path]) -> None:
-    with output_file.open("a") as file:
+    with output_file.open("a", encoding="utf-8") as file:
         for release_note in release_notes_paths:
-            file.write(f"\n{release_note.read_text()}")
+            file.write(f"\n{release_note.read_text('utf-8')}")
 
 
 def main() -> None: