diff --git a/custom_components/spook/ectoplasms/number/services/decrement.py b/custom_components/spook/ectoplasms/number/services/decrement.py
index 151a943c..51fac2b8 100644
--- a/custom_components/spook/ectoplasms/number/services/decrement.py
+++ b/custom_components/spook/ectoplasms/number/services/decrement.py
@@ -36,7 +36,7 @@ async def async_handle_service(
             )
             raise ValueError(msg)
 
-        value = entity.value - amount
+        value = float(entity.value) - amount
 
         if entity.min_value is not None:
             value = max(value, entity.min_value)
diff --git a/custom_components/spook/ectoplasms/number/services/increment.py b/custom_components/spook/ectoplasms/number/services/increment.py
index 603dbc48..85b3db19 100644
--- a/custom_components/spook/ectoplasms/number/services/increment.py
+++ b/custom_components/spook/ectoplasms/number/services/increment.py
@@ -36,7 +36,7 @@ async def async_handle_service(
             )
             raise ValueError(msg)
 
-        value = entity.value + amount
+        value = float(entity.value) + amount
 
         if entity.max_value is not None:
             value = min(value, entity.max_value)