diff --git a/src/pds_doi_service/VERSION.txt b/src/pds_doi_service/VERSION.txt
index ccbccc3d..c043eea7 100644
--- a/src/pds_doi_service/VERSION.txt
+++ b/src/pds_doi_service/VERSION.txt
@@ -1 +1 @@
-2.2.0
+2.2.1