diff --git a/pyprobe/__init__.py b/pyprobe/__init__.py
index 9bde78aa..7a41a9da 100644
--- a/pyprobe/__init__.py
+++ b/pyprobe/__init__.py
@@ -1,13 +1,5 @@
 """The PyProBE package."""
-import os
-
-import toml
-
-from .cell import Cell, load_archive, make_cell_list  # noqa: F401
+from .cell import Cell, __version__, load_archive, make_cell_list  # noqa: F401
 from .dashboard import launch_dashboard  # noqa: F401
 from .plot import Plot  # noqa: F401
 from .result import Result  # noqa: F401
-
-pyproject_path = os.path.join(os.path.dirname(__file__), "..", "pyproject.toml")
-pyproject_data = toml.load(pyproject_path)
-__version__ = pyproject_data["project"]["version"]
diff --git a/pyprobe/cell.py b/pyprobe/cell.py
index 81064f21..bb453670 100644
--- a/pyprobe/cell.py
+++ b/pyprobe/cell.py
@@ -10,13 +10,14 @@
 import distinctipy
 import polars as pl
 import pybamm.solvers.solution
-import toml
 from pydantic import BaseModel, Field, field_validator, validate_call
 
 from pyprobe.cyclers import basecycler, biologic, neware
 from pyprobe.filters import Procedure
 from pyprobe.readme_processor import process_readme
 
+__version__ = "1.0.3"
+
 
 class Cell(BaseModel):
     """A class for a cell in a battery experiment."""
@@ -450,9 +451,7 @@ def archive(self, path: str) -> None:
         if not os.path.exists(path):
             os.makedirs(path)
         metadata = self.dict()
-        pyproject_path = os.path.join(os.path.dirname(__file__), "..", "pyproject.toml")
-        pyproject_data = toml.load(pyproject_path)
-        metadata["PyProBE Version"] = pyproject_data["project"]["version"]
+        metadata["PyProBE Version"] = __version__
         for procedure_name, procedure in self.procedure.items():
             if isinstance(procedure.base_dataframe, pl.LazyFrame):
                 df = procedure.base_dataframe.collect()
@@ -500,13 +499,11 @@ def load_archive(path: str) -> Cell:
 
     with open(os.path.join(archive_path, "metadata.json"), "r") as f:
         metadata = json.load(f)
-    pyproject_path = os.path.join(os.path.dirname(__file__), "..", "pyproject.toml")
-    pyproject_data = toml.load(pyproject_path)
-    if metadata["PyProBE Version"] != pyproject_data["project"]["version"]:
+    if metadata["PyProBE Version"] != __version__:
         warnings.warn(
             f"The PyProBE version used to archive the cell was "
             f"{metadata['PyProBE Version']}, the current version is "
-            f"{pyproject_data['project']['version']}. There may be compatibility"
+            f"{__version__}. There may be compatibility"
             f" issues."
         )
     metadata.pop("PyProBE Version")