diff --git a/covjsonkit/encoder/BoundingBox.py b/covjsonkit/encoder/BoundingBox.py
index 2b06a5a..95da86b 100644
--- a/covjsonkit/encoder/BoundingBox.py
+++ b/covjsonkit/encoder/BoundingBox.py
@@ -133,7 +133,7 @@ def from_polytope(self, result):
 
         levels = fields["levels"]
         if fields["param"] == 0:
-            raise ValueError("No parameters were returned, date requested may be out of range")
+            raise ValueError("No data was returned.")
         for para in fields["param"]:
             self.add_parameter(para)
 
diff --git a/covjsonkit/encoder/Path.py b/covjsonkit/encoder/Path.py
index 68d29dc..8917e79 100644
--- a/covjsonkit/encoder/Path.py
+++ b/covjsonkit/encoder/Path.py
@@ -156,7 +156,7 @@ def from_polytope(self, result):
         logging.debug("The values returned from combined dicts: %s", combined_dict)  # noqa: E501
 
         if fields["param"] == 0:
-            raise ValueError("No parameters were returned, date requested may be out of range")
+            raise ValueError("No data was returned.")
         for para in fields["param"]:
             self.add_parameter(para)
 
diff --git a/covjsonkit/encoder/TimeSeries.py b/covjsonkit/encoder/TimeSeries.py
index bd3ef9e..fee7397 100644
--- a/covjsonkit/encoder/TimeSeries.py
+++ b/covjsonkit/encoder/TimeSeries.py
@@ -123,7 +123,7 @@ def from_polytope(self, result):
 
         levels = fields["levels"]
         if fields["param"] == 0:
-            raise ValueError("No parameters were returned, date requested may be out of range")
+            raise ValueError("No data was returned.")
         for para in fields["param"]:
             self.add_parameter(para)
 
@@ -234,7 +234,7 @@ def from_polytope_step(self, result):
 
         levels = fields["levels"]
         if fields["param"] == 0:
-            raise ValueError("No parameters were returned, date requested may be out of range")
+            raise ValueError("No data was returned.")
         for para in fields["param"]:
             self.add_parameter(para)
 
diff --git a/covjsonkit/encoder/VerticalProfile.py b/covjsonkit/encoder/VerticalProfile.py
index a92d8f8..4bbcc0e 100644
--- a/covjsonkit/encoder/VerticalProfile.py
+++ b/covjsonkit/encoder/VerticalProfile.py
@@ -122,7 +122,7 @@ def from_polytope(self, result):
 
         levels = fields["levels"]
         if fields["param"] == 0:
-            raise ValueError("No parameters were returned, date requested may be out of range")
+            raise ValueError("No data was returned.")
         for para in fields["param"]:
             self.add_parameter(para)
 
diff --git a/covjsonkit/encoder/Wkt.py b/covjsonkit/encoder/Wkt.py
index cd26826..d7e0891 100644
--- a/covjsonkit/encoder/Wkt.py
+++ b/covjsonkit/encoder/Wkt.py
@@ -133,7 +133,7 @@ def from_polytope(self, result):
 
         levels = fields["levels"]
         if fields["param"] == 0:
-            raise ValueError("No parameters were returned, date requested may be out of range")
+            raise ValueError("No data was returned.")
         for para in fields["param"]:
             self.add_parameter(para)
 
diff --git a/covjsonkit/version.py b/covjsonkit/version.py
index 1276d02..0a8da88 100644
--- a/covjsonkit/version.py
+++ b/covjsonkit/version.py
@@ -1 +1 @@
-__version__ = "0.1.5"
+__version__ = "0.1.6"