diff --git a/force_bdss/bdss_application.py b/force_bdss/bdss_application.py
index f49d5f109bdd14e7456ed9092be5da52a1cd0e9f..3955e36e3ea113d3ff98478f7a0b324026367bcc 100644
--- a/force_bdss/bdss_application.py
+++ b/force_bdss/bdss_application.py
@@ -1,5 +1,3 @@
-import json
-
 from stevedore import extension
 from stevedore.exception import NoMatches
 from envisage.api import Application
diff --git a/force_bdss/workspecs/workflow.py b/force_bdss/workspecs/workflow.py
index dd614adbf6c7977e9e164a0aa5a533fce5dbfa3b..8fc6be7c58b6fa5e604099897d7c5f699e6dd209 100644
--- a/force_bdss/workspecs/workflow.py
+++ b/force_bdss/workspecs/workflow.py
@@ -1,4 +1,4 @@
-from traits.api import HasStrictTraits, Instance, String, List
+from traits.api import HasStrictTraits, Instance, List
 
 from ..data_sources.base_data_source_model import BaseDataSourceModel
 from ..kpi.base_kpi_calculator_model import BaseKPICalculatorModel