diff --git a/pyicloud/base.py b/pyicloud/base.py
index 318c020..c58de3d 100644
--- a/pyicloud/base.py
+++ b/pyicloud/base.py
@@ -242,7 +242,7 @@ class PyiCloudService(object):
                 params=self.params,
                 data=data
             )
-        except PyiCloudAPIResponseError, error:
+        except PyiCloudAPIResponseError as error:
             if error.code == -21669:
                 # Wrong verification code
                 return False
diff --git a/pyicloud/services/photos.py b/pyicloud/services/photos.py
index 66bd288..c8eda8f 100644
--- a/pyicloud/services/photos.py
+++ b/pyicloud/services/photos.py
@@ -34,7 +34,7 @@ class PhotosService(object):
                 'syncToken': response['syncToken'],
                 'clientInstanceId': self.params.pop('clientId')
             })
-        except PyiCloudAPIResponseError, error:
+        except PyiCloudAPIResponseError as error:
             if error.code == 402:
                 raise PyiCloudPhotoLibraryNotActivatedErrror(
                     "iCloud Photo Library has not been activated yet "