diff --git a/image_explorer/image_explorer.py b/image_explorer/image_explorer.py
index 3e4861e..77822d0 100644
--- a/image_explorer/image_explorer.py
+++ b/image_explorer/image_explorer.py
@@ -31,7 +31,6 @@ class ImageExplorerBlock(XBlock):  # pylint: disable=no-init
     """
 
     has_score = True
-    max_score = 1.0
     completion_mode = XBlockCompletionMode.COMPLETABLE
 
     display_name = String(
@@ -91,6 +90,9 @@ class ImageExplorerBlock(XBlock):  # pylint: disable=no-init
         </image_explorer>
         """))
 
+    def max_score(self):
+        return 1.0
+
     @property
     def hotspot_coordinates_centered(self):
         if self._hotspot_coordinates_centered:
diff --git a/setup.py b/setup.py
index 527e915..b64d84f 100644
--- a/setup.py
+++ b/setup.py
@@ -23,7 +23,7 @@ def package_data(pkg, root_list):
 
 setup(
     name='xblock-image-explorer',
-    version='1.1.0',
+    version='1.1.1',
     description='XBlock - Image Explorer',
     packages=['image_explorer'],
     install_requires=[