diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 5e1d48e..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.gitignore b/.gitignore
index a096101..555d98a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -32,3 +32,5 @@ coverage.xml
 
 *metadata/*.json
 *images/*.png
+
+.DS_Store
diff --git a/src/common/validate.py b/src/common/validate.py
index 8c758a8..87632eb 100644
--- a/src/common/validate.py
+++ b/src/common/validate.py
@@ -92,7 +92,9 @@ def validate_config(config: dict) -> bool:
                             )
                         )
 
-                if sum(layer["weights"]) != 100:
+                # ensure the sum of the weights is 100
+                # make sure to round the sum to 100 to account for floating point errors
+                if round(sum(layer["weights"]), 2) != 100:
                     raise ConfigValidationError(
                         'config["layers"][{}]["{}"]: The sum of the weights must be 100. Current sum: {}'.format(
                             i, required_key[0], sum(layer["weights"])
diff --git a/tests/test_floating_point_errors.py b/tests/test_floating_point_errors.py
new file mode 100644
index 0000000..3661fed
--- /dev/null
+++ b/tests/test_floating_point_errors.py
@@ -0,0 +1,216 @@
+from unittest.mock import patch
+
+from src.common.validate import validate_config
+
+
+@patch("os.path.isfile", return_value=True)
+def test_floating_point_errors(mock_isfile):
+    valid_config = {
+        "layers": [
+            {
+                "name": "Background",
+                "values": [
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "2.5.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "9.2.png",
+                    "2.5.png",
+                    "1.4.png",
+                    "0.3.png",
+                    "1.7.png",
+                    "1.7.png",
+                    "1.2.png",
+                    "0.7.png",
+                    "1.4.png",
+                    "0.9.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "0.5.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "0.2.png",
+                    "1.png",
+                    "2.2.png",
+                    "1.7.png",
+                    "1.8.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.7.png",
+                    "1.8.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "2.png",
+                    "0.7.png",
+                    "1.8.png",
+                    "0.9.png",
+                    "1.8.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.7.png",
+                    "1.8.png",
+                    "1.7.png",
+                    "1.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "0.9.png",
+                    "1.7.png",
+                    "1.8.png",
+                ],
+                "trait_path": "./trait-layers/foreground",
+                "filename": [
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "2.5.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "9.2.png",
+                    "2.5.png",
+                    "1.4.png",
+                    "0.3.png",
+                    "1.7.png",
+                    "1.7.png",
+                    "1.2.png",
+                    "0.7.png",
+                    "1.4.png",
+                    "0.9.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "0.5.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "0.2.png",
+                    "1.png",
+                    "2.2.png",
+                    "1.7.png",
+                    "1.8.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.7.png",
+                    "1.8.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "2.png",
+                    "0.7.png",
+                    "1.8.png",
+                    "0.9.png",
+                    "1.8.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.4.png",
+                    "1.7.png",
+                    "1.7.png",
+                    "1.8.png",
+                    "1.7.png",
+                    "1.png",
+                    "1.7.png",
+                    "1.4.png",
+                    "0.9.png",
+                    "1.7.png",
+                    "1.8.png",
+                ],
+                "weights": [
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.4,
+                    2.5,
+                    1.4,
+                    1.7,
+                    9.2,
+                    2.5,
+                    1.4,
+                    0.3,
+                    1.7,
+                    1.7,
+                    1.2,
+                    0.7,
+                    1.4,
+                    0.9,
+                    1.4,
+                    1.7,
+                    0.5,
+                    1.7,
+                    1.4,
+                    0.2,
+                    1,
+                    2.2,
+                    1.7,
+                    1.8,
+                    1.4,
+                    1.7,
+                    1.4,
+                    1.7,
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.7,
+                    1.7,
+                    1.8,
+                    1.7,
+                    1.4,
+                    1.4,
+                    1.7,
+                    2,
+                    0.7,
+                    1.8,
+                    0.9,
+                    1.8,
+                    1.4,
+                    1.4,
+                    1.4,
+                    1.7,
+                    1.7,
+                    1.8,
+                    1.7,
+                    1,
+                    1.7,
+                    1.4,
+                    0.9,
+                    1.7,
+                    1.8,
+                ],
+            }
+        ],
+        "incompatibilities": [],
+        "baseURI": ".",
+        "name": "NFT #",
+        "description": "This is a description for this NFT series.",
+    }
+
+    assert validate_config(valid_config) is None  # It should not raise an exception