diff --git a/pkgs/tools/misc/mcfly/default.nix b/pkgs/tools/misc/mcfly/default.nix
index 4d55e6405ac1..612d35ffeb38 100644
--- a/pkgs/tools/misc/mcfly/default.nix
+++ b/pkgs/tools/misc/mcfly/default.nix
@@ -2,22 +2,22 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "mcfly";
-  version = "0.5.10";
+  version = "0.5.11";
 
   src = fetchFromGitHub {
     owner = "cantino";
     repo = "mcfly";
     rev = "v${version}";
-    sha256 = "sha256-auIerSfEKBK47mIhfmjREJohnhCmtzruobRXaoz5fqA=";
+    sha256 = "sha256-JyNrEIgvL4TQHpAEefDnLirXplGjJcUqsmALKY44VuM=";
   };
 
   postPatch = ''
-    substituteInPlace mcfly.bash --replace '$(which mcfly)' '${placeholder "out"}/bin/mcfly'
-    substituteInPlace mcfly.zsh  --replace '$(which mcfly)' '${placeholder "out"}/bin/mcfly'
-    substituteInPlace mcfly.fish --replace '(which mcfly)'  '${placeholder "out"}/bin/mcfly'
+    substituteInPlace mcfly.bash --replace '$(command which mcfly)' '${placeholder "out"}/bin/mcfly'
+    substituteInPlace mcfly.zsh  --replace '$(command which mcfly)' '${placeholder "out"}/bin/mcfly'
+    substituteInPlace mcfly.fish --replace '(command which mcfly)'  '${placeholder "out"}/bin/mcfly'
   '';
 
-  cargoSha256 = "sha256-f9kpD295syRCntwvyjZ9AeAUV61RMbfRRMgNxKAJL8g=";
+  cargoSha256 = "sha256-7wyRHViPL+Hb9Rwrb1dAmmz+faOl9ddNlTdQ/XvTWE8=";
 
   meta = with lib; {
     homepage = "https://github.com/cantino/mcfly";