diff --git a/VERSION b/VERSION
index edb0d4e2b73d10973efa476cfc8741308073286d..f570ac1fdc25edeadd99478ab0b0346b2add48f1 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.7.3-beta3
+1.7.3-rc1
diff --git a/arkindex/system_workers.yml b/arkindex/system_workers.yml
index 5fb7910f92a9341c23c2bef309ed187cd39da84f..91cf240af9b407192c27f2c19e3eb99b929d937e 100644
--- a/arkindex/system_workers.yml
+++ b/arkindex/system_workers.yml
@@ -1,7 +1,7 @@
 # When releasing Arkindex, check that the Docker images set here are up to date,
 # then update the `version` to the current Arkindex version as set in the `VERSION` file
 # to confirm that the images have been manually checked.
-version: 1.7.3-beta3
+version: 1.7.3-rc1
 
 features:
     file_import: