diff --git a/pkgs/applications/misc/cheat/default.nix b/pkgs/applications/misc/cheat/default.nix
index ffe2759a5e76..b4765c0aae32 100644
--- a/pkgs/applications/misc/cheat/default.nix
+++ b/pkgs/applications/misc/cheat/default.nix
@@ -1,18 +1,25 @@
-{ stdenv, fetchFromGitHub, buildGoModule }:
+{ stdenv, fetchFromGitHub
+, buildGoModule, installShellFiles }:
 
 buildGoModule rec {
   pname = "cheat";
-  version = "3.8.0";
+  version = "3.9.0";
 
   src = fetchFromGitHub {
     owner = "cheat";
     repo = "cheat";
     rev = version;
-    sha256 = "062dlc54x9qwb3hsxp20h94dpwsa1nzpjln9cqmvwjhvp434l97r";
+    sha256 = "0jbqflkcfdrinx1lk45klm8ml0n4cgp43nzls1376cd3hfayby1y";
   };
 
   subPackages = [ "cmd/cheat" ];
 
+  nativeBuildInputs = [ installShellFiles ];
+
+  postInstall = ''
+    installShellCompletion scripts/cheat.{bash,fish,zsh}
+  '';
+
   modSha256 = "1is19qca5wgzya332rmpk862nnivxzgxchkllv629f5fwwdvdgmg";
 
   meta = with stdenv.lib; {