diff --git a/pkgs/tools/networking/mu/default.nix b/pkgs/tools/networking/mu/default.nix
index 1a1a8d3c673..3e68b54b9b5 100644
--- a/pkgs/tools/networking/mu/default.nix
+++ b/pkgs/tools/networking/mu/default.nix
@@ -14,13 +14,13 @@
 
 stdenv.mkDerivation rec {
   pname = "mu";
-  version = "1.8.2";
+  version = "1.8.3";
 
   src = fetchFromGitHub {
     owner = "djcb";
     repo = "mu";
     rev = "v${version}";
-    sha256 = "wpyolNXm5JloKMJarYzSbs2yMcrkl73vOw6951Ol8Rs=";
+    sha256 = "gEqhk600pYHOcYhwr8LGvXHH8KcinX5MbMqYGyYOsnY=";
   };
 
   postPatch = ''