diff --git a/dmp-db-scema/updates/05/External_References_Reference_Prefix_Update.sql b/dmp-db-scema/updates/05/External_References_Reference_Prefix_Update.sql
new file mode 100644
index 000000000..57df26e86
--- /dev/null
+++ b/dmp-db-scema/updates/05/External_References_Reference_Prefix_Update.sql
@@ -0,0 +1,31 @@
+-- Registry Update Script
+UPDATE public."Registry"
+SET "Reference" = REPLACE("Reference", 'dmpdata/', 'dmp:')
+WHERE "Reference" LIKE 'dmpdata/%';
+
+-- Service Update Script
+UPDATE public."Service"
+SET "Reference" = REPLACE("Reference", 'dmpdata/', 'dmp:')
+WHERE "Reference" LIKE 'dmpdata/%';
+UPDATE public."Service"
+SET "Reference" = REPLACE("Reference", 'innerdata/', 'dmp:')
+WHERE "Reference" LIKE 'innerdata/%'
+
+-- DataRepository
+UPDATE public."DataRepository"
+SET "Reference" = REPLACE("Reference", 'dmpdata/', 'dmp:')
+where "Reference" like 'dmpdata/%';
+UPDATE public."DataRepository"
+SET "Reference" = CONCAT('re3data:', "Reference")
+where "Reference" LIKE '%:re3data%';
+UPDATE public."DataRepository"
+SET "Reference" = CONCAT('dmp:', "Reference")
+where "Reference" LIKE '%:internal%';
+UPDATE public."DataRepository"
+SET "Reference" = CONCAT('eestore:', "Reference")
+where "Reference" LIKE '%:eestore%';
+
+-- ExternalDataset
+UPDATE public."ExternalDataset"
+SET "Reference" = REPLACE("Reference", 'dmpdata/', 'dmp:')
+WHERE "Reference" LIKE 'dmpdata/%'
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