diff --git a/scripts/unicode.py b/scripts/unicode.py
index 368b94c..80391e9 100644
--- a/scripts/unicode.py
+++ b/scripts/unicode.py
@@ -46,7 +46,7 @@
 # Download a Unicode security table file
 def fetch(f):
     if not os.path.exists(os.path.basename(f)):
-        os.system("curl -O http://www.unicode.org/Public/security/%s/%s"
+        os.system("curl -O https://www.unicode.org/Public/security/%s/%s"
                   % (UNICODE_VERSION_NUMBER, f))
 
     if not os.path.exists(os.path.basename(f)):
@@ -56,7 +56,7 @@ def fetch(f):
 # Download a UCD table file
 def fetch_unidata(f):
     if not os.path.exists(os.path.basename(f)):
-        os.system("curl -O http://www.unicode.org/Public/%s/ucd/%s"
+        os.system("curl -O https://www.unicode.org/Public/%s/ucd/%s"
                   % (UNICODE_VERSION_NUMBER, f))
 
     if not os.path.exists(os.path.basename(f)):