diff --git a/scripts/whois-ip.nse b/scripts/whois-ip.nse
index 76629c196..bee4dbf1b 100644
--- a/scripts/whois-ip.nse
+++ b/scripts/whois-ip.nse
@@ -1640,7 +1640,7 @@ function script_init( )
   nmap.registry.whois.remote_assignments_files = {}
   nmap.registry.whois.remote_assignments_files.ipv4 = {
     {
-      remote_resource = "http://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt",
+      remote_resource = "https://www.iana.org/assignments/ipv4-address-space/ipv4-address-space.txt",
       local_resource = "ipv4-address-space",
       match_assignment = "^%s*([%.%d]+/%d+)",
       match_service = "whois%.(%w+)%.net"
@@ -1654,7 +1654,7 @@ function script_init( )
     match_service = "^[:%x]+/%d+%s*(%w+)"
     },--]]
     {
-      remote_resource = "http://www.iana.org/assignments/ipv6-unicast-address-assignments/ipv6-unicast-address-assignments.txt",
+      remote_resource = "https://www.iana.org/assignments/ipv6-unicast-address-assignments/ipv6-unicast-address-assignments.txt",
       local_resource = "ipv6-unicast-address-assignments",
       match_assignment = "^%s*([:%x]+/%d+)",
       match_service = "whois%.(%w+)%.net"