diff --git a/src/HttpLibrary/__init__.py b/src/HttpLibrary/__init__.py
index 9e433fd..8a905cf 100644
--- a/src/HttpLibrary/__init__.py
+++ b/src/HttpLibrary/__init__.py
@@ -503,7 +503,7 @@ def set_basic_auth(self, username, password):
         if isinstance(credentials, str):
             credentials = credentials.encode()
         self.set_request_header(
-            "Authorization", "Basic %s" % b64encode(credentials))
+            "Authorization", "Basic %s" % b64encode(credentials).decode('utf-8'))
 
     # payload