diff --git a/arlulacore/auth.py b/arlulacore/auth.py
index 9b7e438..6982eb1 100644
--- a/arlulacore/auth.py
+++ b/arlulacore/auth.py
@@ -14,7 +14,7 @@
 name = "arlulacore"
 
 # User agent setting
-sdk_version = "4.0.0"
+sdk_version = "4.0.1"
 py_version = sys.version.split(' ')[0]
 os_version = platform.platform()
 def_ua = "core-sdk " + \
diff --git a/arlulacore/common.py b/arlulacore/common.py
index b0d2f12..052ee36 100644
--- a/arlulacore/common.py
+++ b/arlulacore/common.py
@@ -10,7 +10,7 @@
 
 class ArlulaObject(abc.ABC):
     def __repr__(self):
-        return str(['{}: {}'.format(attr, value) for attr, value in self.__dict__.items()])[1:-1].replace('\'', '')
+        return str(['{}: {}'.format(attr, value) for attr, value in self.__dict__().items()])[1:-1].replace('\'', '')
 
     def format(self, format: str) -> str:
         if format == "json":
diff --git a/setup.py b/setup.py
index 3e82d1f..ed4dcec 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setuptools.setup(
     name='arlulacore',
-    version='4.0.0',
+    version='4.0.1',
     author="Arlula",
     author_email="tech@arlula.com",
     description="A package to facilitate access to the Arlula Imagery Marketplace API",