diff --git a/pkgs/by-name/sl/slumber/package.nix b/pkgs/by-name/sl/slumber/package.nix
index ace04ecc42db..de7d8d15d82e 100644
--- a/pkgs/by-name/sl/slumber/package.nix
+++ b/pkgs/by-name/sl/slumber/package.nix
@@ -8,17 +8,17 @@
 
 rustPlatform.buildRustPackage rec {
   pname = "slumber";
-  version = "2.5.0";
+  version = "3.0.0";
 
   src = fetchFromGitHub {
     owner = "LucasPickering";
     repo = "slumber";
     tag = "v${version}";
-    hash = "sha256-ojHVH/GE2FonqqxpGK6t/AmCaeOS1TkWMt89iUt5i1s=";
+    hash = "sha256-iahhmoRcUvyX2QMW7SuIXcS1a7NXg/df8XarPHrTP8o=";
   };
 
   useFetchCargoVendor = true;
-  cargoHash = "sha256-1xWSFM1LSFKTaGWgAK9M2TI5Gqes29A/L1WMDj+GSIA=";
+  cargoHash = "sha256-v8yl71rpePlqNwXRU3Ak3x5796qYtO95H3ipvwEeFww=";
 
   buildInputs = lib.optionals stdenv.hostPlatform.isDarwin [ darwin.apple_sdk.frameworks.AppKit ];