diff --git a/molgenis-preview/questions.yml b/molgenis-preview/questions.yml
index 8e33c8c..ea2d5d0 100644
--- a/molgenis-preview/questions.yml
+++ b/molgenis-preview/questions.yml
@@ -14,10 +14,10 @@ questions:
   description: "CPU limit for this MOLGENIS instance"
   type: enum
     options:
-    - 1
-    - 2
-    - 3
-    - 4
+    - "1"
+    - "2"
+    - "3"
+    - "4"
   required: true
   group: "Resource limits"
   label: CPU limit
@@ -26,10 +26,10 @@ questions:
   description: "Memory limit for this MOLGENIS instance"
   type: enum
     options:
-    - 1250Mi
-    - 1500Mi
-    - 2000Mi
-    - 2500Mi
+    - "1250Mi"
+    - "1500Mi"
+    - "2000Mi"
+    - "2500Mi"
   required: true
   group: "Resource limits"
   label: Memory limit
\ No newline at end of file