diff --git a/dwd_global_radiation/global_radiation.py b/dwd_global_radiation/global_radiation.py
index 8e7ad66..eee3a24 100644
--- a/dwd_global_radiation/global_radiation.py
+++ b/dwd_global_radiation/global_radiation.py
@@ -125,8 +125,8 @@ def get_forecast_for_future_hour(self, datetime_input, number_of_hours):
             retrieve the forecast.
 
         Returns:
-            str: A JSON string containing the forecast timestamp in UTC and sis (Global Radiation)
-                 value, or an error message if no forecast is found for the specified time.
+            dict: A dictionary containing the forecast timestamp in UTC and sis (Global Radiation)
+                  value, or an error message if no forecast is found for the specified time.
         """
         # Ensure datetime_input is in UTC
         datetime_input = datetime_input.astimezone(timezone.utc)
@@ -145,16 +145,14 @@ def get_forecast_for_future_hour(self, datetime_input, number_of_hours):
 
         if target_index < len(self.forecasts[0].entries):
             forecast_entry = self.forecasts[0].entries[target_index]
-            return json.dumps(
-                {
-                    "timestamp": datetime.fromtimestamp(
-                        forecast_entry.timestamp, tz=timezone.utc
-                    ).strftime("%Y-%m-%dT%H:%M:%S%z"),
-                    "sis": round(forecast_entry.sis),
-                }
-            )
-
-        return json.dumps({"error": "No forecast found for the specified time"})
+            return {
+                "timestamp": datetime.fromtimestamp(
+                    forecast_entry.timestamp, tz=timezone.utc
+                ).strftime("%Y-%m-%dT%H:%M:%S%z"),
+                "sis": round(forecast_entry.sis),
+            }
+
+        return {"error": "No forecast found for the specified time"}
 
 
 @dataclass
diff --git a/setup.py b/setup.py
index 7408dbe..7b7a8b1 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
 
 setup(
     name='dwd_global_radiation',
-    version='1.1.0rc5',
+    version='1.1.0rc6',
     packages=find_packages(),
     description='Access and analyze DWD global radiation data and forecasts',
     long_description=long_description,