diff --git a/src/utils/deploy/hash-fns.ts b/src/utils/deploy/hash-fns.ts
index 69b501b91df..348b7e67458 100644
--- a/src/utils/deploy/hash-fns.ts
+++ b/src/utils/deploy/hash-fns.ts
@@ -157,6 +157,16 @@ const hashFns = async (
     statusCb,
     tmpDir,
   })
+
+  for (const func of functionZips) {
+    if (!func.buildData) {
+      func.buildData = {
+        bootstrapVersion: func.bootstrapVersion,
+        runtimeAPIVersion: func.runtimeAPIVersion,
+      }
+    }
+  }
+
   const fileObjs = functionZips.map(
     ({
       buildData,