diff --git a/apps/swh-loader-cvs/requirements.txt b/apps/swh-loader-cvs/requirements.txt
index 9df82e34380345d479b9082b0498778900ea4b4b..b63e6774a95c605d0c77f4d00283c3fb47f7c615 100644
--- a/apps/swh-loader-cvs/requirements.txt
+++ b/apps/swh-loader-cvs/requirements.txt
@@ -1,2 +1,2 @@
 swh-loader-cvs
-
+python-json-logger