diff --git a/coloc_sat/__init__.py b/coloc_sat/__init__.py
index 17fe777..a71a1df 100644
--- a/coloc_sat/__init__.py
+++ b/coloc_sat/__init__.py
@@ -2,10 +2,10 @@
 
 __author__ = """Yann Reynaud"""
 __email__ = 'yann.reynaud.2@ifremer.fr'
-__version__ = '0.1.0'
 __all__ = ['GetSarMeta', 'GetEra5Meta', 'GetHy2Meta', 'GetSmosMeta', 'GetWindSatMeta',
            'GetSmapMeta', 'ProductIntersection', 'GenerateColoc']
 
+from .version import __version__
 from .sar_meta import GetSarMeta
 from .era5_meta import GetEra5Meta
 from .hy2_meta import GetHy2Meta
diff --git a/coloc_sat/config_version.json b/coloc_sat/config_version.json
deleted file mode 100644
index 1587a66..0000000
--- a/coloc_sat/config_version.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "version": "1.0.0"
-}
diff --git a/coloc_sat/intersection.py b/coloc_sat/intersection.py
index 87128b0..64d3a0f 100644
--- a/coloc_sat/intersection.py
+++ b/coloc_sat/intersection.py
@@ -12,6 +12,8 @@
 from .intersection_tools import extract_times_dataset, are_dimensions_empty, get_footprint_from_ll_ds, \
     get_polygon_area_in_km_squared, get_transform, get_common_points, get_nearest_time_datasets, remove_nat
 from .tools import mean_time_diff, reformat_meta, convert_str_to_polygon
+from .version import __version__
+
 
 logger = logging.getLogger(__name__)
 
@@ -747,9 +749,7 @@ def get_common_attrs():
             attrs['polygon_common_zone'] = poly_common_zone()
             attrs['area_intersection'] = str(get_polygon_area_in_km_squared(attrs['polygon_common_zone']))
             # add tool version to attributes
-            with open(Path(__file__).resolve().parent / "config_version.json", "r") as config_file:
-                config_data = json.load(config_file)
-            attrs['version'] = config_data["version"]
+            attrs['coloc_sat_version'] = __version__
             return attrs
 
         merged_ds = xr.merge([dataset1, dataset2], compat='override')