diff --git a/pkgs/by-name/sp/spl/package.nix b/pkgs/by-name/sp/spl/package.nix
index 60204b378ae4..c3e517d86291 100644
--- a/pkgs/by-name/sp/spl/package.nix
+++ b/pkgs/by-name/sp/spl/package.nix
@@ -5,14 +5,14 @@
 }:
 rustPlatform.buildRustPackage rec {
   pname = "spl";
-  version = "0.3.2";
+  version = "0.4.0";
   src = fetchgit {
     url = "https://git.tudbut.de/tudbut/spl";
     rev = "v${version}";
-    hash = "sha256-thTKM07EtgAVvjpIx8pVssTmN0jPK/OrPYhRfwp7T+U=";
+    hash = "sha256-/WjrQeE3zI71pvCil2yE9ZMaWkmyRG/tNmZ+XFF0nYw=";
   };
 
-  cargoHash = "sha256-7MYwWA3F7uJewmBRR0iQD4iXJZokHqIt9Q9dMoj6JVs=";
+  cargoHash = "sha256-8xv7tXVklJDewnHqoRIMefsNWTD28+5WyV5ZI9imOh0=";
 
   meta = {
     description = "Simple, concise, concatenative scripting language";