diff --git a/pkgs/by-name/nb/nbench/package.nix b/pkgs/by-name/nb/nbench/package.nix
index 065315d93659..1d7c5d9b5049 100644
--- a/pkgs/by-name/nb/nbench/package.nix
+++ b/pkgs/by-name/nb/nbench/package.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation (finalAttrs: {
   version = "2.2.3";
 
   src = fetchurl {
-    url = "http://www.math.utah.edu/~mayer/linux/nbench-byte-${finalAttrs.version}.tar.gz";
+    url = "https://www.math.utah.edu/~mayer/linux/nbench-byte-${finalAttrs.version}.tar.gz";
     sha256 = "1b01j7nmm3wd92ngvsmn2sbw43sl9fpx4xxmkrink68fz1rx0gbj";
   };