diff --git a/src/poetry/core/masonry/builders/wheel.py b/src/poetry/core/masonry/builders/wheel.py
index e29213243..cc48f161a 100644
--- a/src/poetry/core/masonry/builders/wheel.py
+++ b/src/poetry/core/masonry/builders/wheel.py
@@ -361,13 +361,14 @@ def _get_sys_tags(self) -> list[str]:
 """,
                 ],
                 stderr=subprocess.STDOUT,
+                text=True,
             )
         except subprocess.CalledProcessError as e:
             raise RuntimeError(
                 "Failed to get sys_tags for python interpreter"
                 f" '{self.executable.as_posix()}':\n{decode(e.output)}"
             )
-        return decode(output).strip().splitlines()
+        return output.strip().splitlines()
 
     @property
     def tag(self) -> str:
diff --git a/src/poetry/core/vcs/__init__.py b/src/poetry/core/vcs/__init__.py
index f4096ec0e..4e03a8904 100644
--- a/src/poetry/core/vcs/__init__.py
+++ b/src/poetry/core/vcs/__init__.py
@@ -17,13 +17,11 @@ def get_vcs(directory: Path) -> Git | None:
     try:
         from poetry.core.vcs.git import executable
 
-        git_dir = (
-            subprocess.check_output(
-                [executable(), "rev-parse", "--show-toplevel"], stderr=subprocess.STDOUT
-            )
-            .decode()
-            .strip()
-        )
+        git_dir = subprocess.check_output(
+            [executable(), "rev-parse", "--show-toplevel"],
+            stderr=subprocess.STDOUT,
+            text=True,
+        ).strip()
 
         vcs = Git(Path(git_dir))