diff --git a/modules/cloudflare/dns/dns.tf b/modules/cloudflare/dns/dns.tf
index 903448f..5d00e70 100644
--- a/modules/cloudflare/dns/dns.tf
+++ b/modules/cloudflare/dns/dns.tf
@@ -48,7 +48,7 @@ resource "cloudflare_dns_record" "caa" {
   type     = "CAA"
 
   data = {
-    flags = 0
+    flags = "0"
     tag   = "issue"
     value = each.value
   }
diff --git a/modules/cloudflare/dns/versions.tf b/modules/cloudflare/dns/versions.tf
index 664681b..6e7dcf2 100644
--- a/modules/cloudflare/dns/versions.tf
+++ b/modules/cloudflare/dns/versions.tf
@@ -4,7 +4,7 @@ terraform {
   required_providers {
     cloudflare = {
       source  = "cloudflare/cloudflare"
-      version = ">= 5.1.0"
+      version = ">= 5.18.0"
     }
   }
 }