diff --git a/mira/sources/util.py b/mira/sources/util.py
index fa780243..a8cc66ca 100644
--- a/mira/sources/util.py
+++ b/mira/sources/util.py
@@ -187,7 +187,7 @@ def parameter_to_mira(parameter, param_symbols=None) -> Parameter:
         processed_distr_parameters = {}
         for param_key, param_value in distr_json.get("parameters", {}).items():
             if isinstance(param_value, float) or isinstance(param_value, int):
-                processed_distr_parameters[param_key] = param_value
+                processed_distr_parameters[param_key] = float(param_value)
             elif isinstance(param_value, str):
                 processed_distr_parameters[param_key] = \
                     safe_parse_expr(param_value)