diff --git a/freenlpc/freenlpc.py b/freenlpc/freenlpc.py
index a1fb8f7..c6685a8 100644
--- a/freenlpc/freenlpc.py
+++ b/freenlpc/freenlpc.py
@@ -40,8 +40,10 @@ def __check_keys(self):
             try:
                 nlpcloud.Client(self.which_model("sentiment_pos_neg"),
                             self.__api_keys[i], lang="en").sentiment("i hate physics")
-            except requests.exceptions.HTTPError:
-                raise Exception(f"API Token at index {i} is not valid.")
+            except requests.exceptions.HTTPError as e:
+                if str(e).find("Unauthorized") != -1:
+                    raise Exception(
+                        f"API Token at index {i} is not valid.")
             
     def which_model(self, task_name):
         """which model is being used for a specific task.
diff --git a/setup.py b/setup.py
index d6574df..c0f9071 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup, find_packages
 
-VERSION = '0.1.6'
+VERSION = '0.1.7'
 DESCRIPTION = 'A wrapper for nlpcloud free-tier services with no requests per minute limits.'
 LONG_DESCRIPTION = """# freenlpc
 a wrapper for nlpcloud free-tier.