diff --git a/src/bioservices/quickgo.py b/src/bioservices/quickgo.py
index 0accfc1..1814213 100644
--- a/src/bioservices/quickgo.py
+++ b/src/bioservices/quickgo.py
@@ -87,7 +87,10 @@ def go_search(self, query, limit=600, page=1):
             return res
 
     def get_go_terms(self, query, max_number_of_pages=None):
-        """Get information on all terms and page through the result"""
+        """Get information on all terms and page through the result
+        
+        :param str query: terms as string of comma seperated values
+        """
 
         query = query.replace(":", "%3A")
         query = query.replace(",", "%2C")
diff --git a/src/bioservices/uniprot.py b/src/bioservices/uniprot.py
index 4bfd28e..5fa309c 100644
--- a/src/bioservices/uniprot.py
+++ b/src/bioservices/uniprot.py
@@ -821,11 +821,11 @@ def get_df(self, entries, nChunk=100, organism=None, limit=10):
                 if isinstance(output, type(None)):
                     output = df.copy()
                 else:
-                    output = output.append(df, ignore_index=True)
+                    # output = output.append(df, ignore_index=True)
+                    output = pd.concat([output, df], ignore_index=True)
 
         # you may end up with duplicated...
         output.drop_duplicates(inplace=True)
-
         # Sequences are splitted into chunks of 10 characters. let us remove
         # the spaces:
         if "sequence" in output.columns: