diff --git a/src/poetry/core/vcs/__init__.py b/src/poetry/core/vcs/__init__.py
index debd95760..2c2322053 100644
--- a/src/poetry/core/vcs/__init__.py
+++ b/src/poetry/core/vcs/__init__.py
@@ -19,6 +19,8 @@ def get_vcs(directory: Path) -> Git | None:
 
         check_ignore = subprocess.run(
             [executable(), "check-ignore", "."],
+            stderr=subprocess.DEVNULL,
+            stdout=subprocess.DEVNULL,
         ).returncode
 
         if check_ignore == 0: