diff --git a/pkgs/tools/networking/mu/default.nix b/pkgs/tools/networking/mu/default.nix
index fa1740e9d12..0cd3e15e762 100644
--- a/pkgs/tools/networking/mu/default.nix
+++ b/pkgs/tools/networking/mu/default.nix
@@ -3,12 +3,12 @@
 , gtk3, webkitgtk24x, libsoup, icu }:
 
 stdenv.mkDerivation rec {
-  version = "0.9.16";
+  version = "0.9.18";
   name = "mu-${version}";
 
   src = fetchurl {
-    url = "https://github.com/djcb/mu/archive/v${version}.tar.gz";
-    sha256 = "0p7hqri1r1x6750x138cc29mh81kdav2dcim26y58s8an206h25g";
+    url = "https://github.com/djcb/mu/archive/${version}.tar.gz";
+    sha256 = "0gfwi4dwqhsz138plryd0j935vx2i44p63jpfx85ki3l4ysmmlwd";
   };
 
   buildInputs = [