diff --git a/src/acom_music_box/__init__.py b/src/acom_music_box/__init__.py
index 7f8329a3..dec1591c 100644
--- a/src/acom_music_box/__init__.py
+++ b/src/acom_music_box/__init__.py
@@ -4,7 +4,7 @@
 This package contains modules for handling various aspects of a music box,
 including species, products, reactants, reactions, and more.
 """
-__version__ = "2.2.2"
+__version__ = "2.2.3"
 
 from .utils import convert_time, convert_pressure, convert_temperature, convert_concentration
 from .species import Species
diff --git a/src/acom_music_box/conditions.py b/src/acom_music_box/conditions.py
index e8a094fd..35a709fc 100644
--- a/src/acom_music_box/conditions.py
+++ b/src/acom_music_box/conditions.py
@@ -152,8 +152,10 @@ def from_config_JSON(
         if 'initial conditions' in config_JSON and len(
                 list(config_JSON['initial conditions'].keys())) > 0:
 
-            initial_conditions_path = os.path.dirname(
-                path_to_json) + "/" + list(config_JSON['initial conditions'].keys())[0]
+            initial_conditions_path = os.path.join(
+                os.path.dirname(path_to_json),
+                list(config_JSON['initial conditions'].keys())[0])
+
             reaction_rates = Conditions.read_initial_rates_from_file(
                 initial_conditions_path, reaction_list)