diff --git a/pkgs/by-name/io/iozone/package.nix b/pkgs/by-name/io/iozone/package.nix
index d807a43b9f09..d0a31d286279 100644
--- a/pkgs/by-name/io/iozone/package.nix
+++ b/pkgs/by-name/io/iozone/package.nix
@@ -24,12 +24,12 @@ stdenv.mkDerivation rec {
   version = "3.507";
 
   src = fetchurl {
-    url = "http://www.iozone.org/src/current/iozone${lib.replaceStrings [ "." ] [ "_" ] version}.tar";
+    url = "https://www.iozone.org/src/current/iozone${lib.replaceStrings [ "." ] [ "_" ] version}.tar";
     hash = "sha256-HoCHraBW9dgBjuC8dmhtQW/CJR7QMDgFXb0K940eXOM=";
   };
 
   license = fetchurl {
-    url = "http://www.iozone.org/docs/Iozone_License.txt";
+    url = "https://www.iozone.org/docs/Iozone_License.txt";
     hash = "sha256-O/8yztxKBI/UKs6vwv9mq16Rn3cf/UHpSxdVnAPVCYw=";
   };