diff --git a/CHANGELOG.md b/CHANGELOG.md
index c706de0..ada5e52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,14 @@ drc exec delta-producer-background-jobs-initiator curl -X POST http://localhost/
 drc exec delta-producer-background-jobs-initiator curl -X POST http://localhost/organizations/healing-jobs # or wait until nightly healing kicks in
 ```
 
+## v1.31.3 (2025-05-08)
+### Backend
+ - Migrate active organizations linked to inactive CKB to the active one. [DL-6604]
+### Deploy notes
+```
+drc restart migrations-triggering-indexing && drc logs -ft --tail=200 migrations-triggering-indexing
+```
+
 ## v1.31.2 (2025-04-02)
 ### Backend
 - Extend the public producer to include: [CLBV-980]
@@ -82,7 +90,7 @@ Before we can generate a user we need to add an application salt to the server.
 
 Once this is done you can generate a user by running `mu script project-scripts generate-dashboard-login` and following the prompts. A new local migration will be generated which can be run by restarting the migrations service and which will insert the new user into the database.
 
-Store the login credentials as a comment in the docker-compose.override.yml file. 
+Store the login credentials as a comment in the docker-compose.override.yml file.
 
 ##### 3. (Re)start the needed services
 `drc up -d frontend-dashboard dashboard-login identifier; drc restart dispatcher resource db`
diff --git a/config/migrations-triggering-indexing/2025/20250429103515-remove-has-suborganization-from-inactive-ckb-deinze.sparql b/config/migrations-triggering-indexing/2025/20250429103515-remove-has-suborganization-from-inactive-ckb-deinze.sparql
new file mode 100644
index 0000000..72fe5eb
--- /dev/null
+++ b/config/migrations-triggering-indexing/2025/20250429103515-remove-has-suborganization-from-inactive-ckb-deinze.sparql
@@ -0,0 +1,55 @@
+PREFIX org: <http://www.w3.org/ns/org#>
+PREFIX mu: <http://mu.semte.ch/vocabularies/core/>
+
+INSERT {
+  GRAPH <http://mu.semte.ch/graphs/worship-service> {
+    ?activeOrg
+      <http://www.w3.org/ns/org#hasSubOrganization> ?sub .
+
+    ?membership a org:Membership ;
+      mu:uuid ?uuid ;
+      org:organization ?activeOrg ;
+      org:member ?sub ;
+      org:role <http://data.lblod.info/id/rollen/4ec7d5c39bdc4e84b4174379b9e22ad8> .
+  }
+}
+WHERE {
+  BIND(<http://data.lblod.info/id/centraleBesturenVanDeEredienst/643ddbd9448ca43828702527af7bfbb8> AS ?inactiveOrg)
+  BIND(<http://data.lblod.info/id/centraleBesturenVanDeEredienst/7f5475cfb202d12f54779f046441c9e1> AS ?activeOrg)
+
+  GRAPH <http://mu.semte.ch/graphs/worship-service> {
+    ?inactiveOrg
+      <http://www.w3.org/ns/org#hasSubOrganization> ?sub .
+  }
+
+  FILTER NOT EXISTS {
+   ?activeOrg
+     <http://www.w3.org/ns/org#hasSubOrganization> ?sub .
+  }
+
+  BIND(SHA1(CONCAT(STR(?activeOrg), STR(?sub), "sub organization")) as ?uuid)
+  BIND(IRI(CONCAT("http://data.lblod.info/id/lidmaatschap/", ?uuid)) AS ?membership)
+}
+
+;
+
+DELETE {
+  GRAPH <http://mu.semte.ch/graphs/worship-service> {
+    ?inactiveOrg
+      <http://www.w3.org/ns/org#hasSubOrganization> ?sub .
+
+    ?membership ?membershipP ?membershipO .
+  }
+}
+WHERE {
+  BIND(<http://data.lblod.info/id/centraleBesturenVanDeEredienst/643ddbd9448ca43828702527af7bfbb8> AS ?inactiveOrg)
+
+  GRAPH <http://mu.semte.ch/graphs/worship-service> {
+    ?inactiveOrg
+      <http://www.w3.org/ns/org#hasSubOrganization> ?sub .
+
+    ?membership a org:Membership ;
+      org:organization ?inactiveOrg ;
+      ?membershipP ?membershipO .
+  }
+}