diff --git a/pkgs/by-name/fl/flexibee/package.nix b/pkgs/by-name/fl/flexibee/package.nix
index 5c57691911d2..6ad85f01f161 100644
--- a/pkgs/by-name/fl/flexibee/package.nix
+++ b/pkgs/by-name/fl/flexibee/package.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
   inherit version;
 
   src = fetchurl {
-    url = "http://download.flexibee.eu/download/${majorVersion}/${version}/${pname}-${version}.tar.gz";
+    url = "https://download.flexibee.eu/download/${majorVersion}/${version}/${pname}-${version}.tar.gz";
     sha256 = "sha256-WorRyfjWucV8UhAjvuW+22CRzPcz5tjXF7Has4wrLMI=";
   };