diff --git a/datapackage_pipelines_budgetkey/processors/manage-revisions.py b/datapackage_pipelines_budgetkey/processors/manage-revisions.py
index fbd1d1f0..af80cc9e 100644
--- a/datapackage_pipelines_budgetkey/processors/manage-revisions.py
+++ b/datapackage_pipelines_budgetkey/processors/manage-revisions.py
@@ -220,6 +220,7 @@ def main():
                                existing_ids,
                                prefix,
                                max_staleness))
+    existing_ids.close()
 
 
 main()
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 62fafb95..02b97980 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,3 +1,3 @@
 tableschema-sql<1.3.0
-kvfile>=0.0.6
+kvfile>=1.1.2
 dataflows>=0.3.16
\ No newline at end of file