diff --git a/.changeset/honest-clouds-shout.md b/.changeset/honest-clouds-shout.md
new file mode 100644
index 0000000000..0a7249d9ad
--- /dev/null
+++ b/.changeset/honest-clouds-shout.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-scaffolder-backend': patch
+---
+
+catalog write action should allow any shape of object
diff --git a/plugins/scaffolder-backend/src/scaffolder/actions/builtin/catalog/write.ts b/plugins/scaffolder-backend/src/scaffolder/actions/builtin/catalog/write.ts
index aaaf504833..9e823d2574 100644
--- a/plugins/scaffolder-backend/src/scaffolder/actions/builtin/catalog/write.ts
+++ b/plugins/scaffolder-backend/src/scaffolder/actions/builtin/catalog/write.ts
@@ -70,6 +70,7 @@ export function createCatalogWriteAction() {
         // TODO: this should reference an zod entity validator if it existed.
         entity: z
           .object({})
+          .passthrough()
           .describe(
             'You can provide the same values used in the Entity schema.',
           ),