diff --git a/VERSION b/VERSION
index 780d3656874074eec22a258315348efc51fd76a5..266146b87cbc8e6d59fe83c426a8500f9549adfb 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.6.3-rc3
+1.6.3
diff --git a/arkindex/system_workers.yml b/arkindex/system_workers.yml
index 26b4e9fcf758e50611e35587319df3e82560ddf6..98b7ddf7f16b6ba3444bbac46ace93da6bef60e3 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: 1.6.3-rc3
+version: 1.6.3
 
 features:
     init_elements: registry.gitlab.teklia.com/arkindex/workers/init-elements:0.1.1