diff --git a/pyproject.toml b/pyproject.toml
index 8c5055a..54a64a5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ packages = ["src/echosms"]
 
 [project]
 name = 'echosms'
-version = '0.1.4'
+version = '0.1.5'
 license = {file = "LICENSE"}
 keywords = ["acoustic", "backscatter", "model"]
 authors = [
diff --git a/src/echosms/scattermodelbase.py b/src/echosms/scattermodelbase.py
index cf54faa..183f54c 100644
--- a/src/echosms/scattermodelbase.py
+++ b/src/echosms/scattermodelbase.py
@@ -73,7 +73,7 @@ def calculate_ts(self, data, multiprocess=False, result_type=None):
         : list, Series, DataFrame, or DataArray
             Returns the TS. Variable type is determined by the type of `data`:
 
-            - dict input returns a list (or DataFrame if `result_type` is `expand`).
+            - dict input returns a list or DataFrame (if `result_type` is `expand`).
             - DataFrame input returns a Series
             - DataArray input returns the given DataArray with the values set to the TS