diff --git a/config/migrations/2023/20230418093500-add-org-post-type-to-mandates.sparql b/config/migrations/2023/20230418093500-add-org-post-type-to-mandates.sparql
new file mode 100644
index 0000000..f8e4e24
--- /dev/null
+++ b/config/migrations/2023/20230418093500-add-org-post-type-to-mandates.sparql
@@ -0,0 +1,19 @@
+INSERT {
+  GRAPH <http://mu.semte.ch/graphs/administrative-unit> {
+    ?s a <http://www.w3.org/ns/org#Post> .
+  }
+} WHERE {
+  GRAPH <http://mu.semte.ch/graphs/administrative-unit> {
+    ?s a <http://data.vlaanderen.be/ns/mandaat#Mandaat> .
+  }
+}
+
+INSERT {
+  GRAPH <http://mu.semte.ch/graphs/worship-service> {
+    ?s a <http://www.w3.org/ns/org#Post> .
+  }
+} WHERE {
+  GRAPH <http://mu.semte.ch/graphs/worship-service> {
+    ?s a <http://data.vlaanderen.be/ns/mandaat#Mandaat> .
+  }
+}
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