diff --git a/specfile/changelog.py b/specfile/changelog.py
index 506a6f4e..89c3d463 100644
--- a/specfile/changelog.py
+++ b/specfile/changelog.py
@@ -400,15 +400,13 @@ def guess_packager() -> str:
     if shutil.which("git"):
         email = subprocess.run(
             ["git", "config", "user.email"],
-            stdout=subprocess.PIPE,
-            stderr=subprocess.PIPE,
-            universal_newlines=True,
+            capture_output=True,
+            text=True,
         ).stdout.strip()
         fullname = subprocess.run(
             ["git", "config", "user.name"],
-            stdout=subprocess.PIPE,
-            stderr=subprocess.PIPE,
-            universal_newlines=True,
+            capture_output=True,
+            text=True,
         ).stdout.strip()
     if not fullname:
         fullname = _getent_name()
diff --git a/tests/unit/test_guess_packager.py b/tests/unit/test_guess_packager.py
index 5327aaf8..e5d78797 100644
--- a/tests/unit/test_guess_packager.py
+++ b/tests/unit/test_guess_packager.py
@@ -44,20 +44,16 @@ def set_packager_git(monkeypatch: MonkeyPatch, tmp_path: Path) -> str:
     packager = "Packager, Patty <packager@patty.dev>"
 
     monkeypatch.chdir(tmp_path)
-    subprocess.run(
-        ["git", "init", "."], check=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE
-    )
+    subprocess.run(["git", "init", "."], check=True, capture_output=True)
     subprocess.run(
         ["git", "config", "user.name", "Packager, Patty"],
         check=True,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
+        capture_output=True,
     )
     subprocess.run(
         ["git", "config", "user.email", "packager@patty.dev"],
         check=True,
-        stdout=subprocess.PIPE,
-        stderr=subprocess.PIPE,
+        capture_output=True,
     )
     return packager