diff --git a/flake.nix b/flake.nix
index 4887ba3..095e2d8 100644
--- a/flake.nix
+++ b/flake.nix
@@ -33,10 +33,11 @@
         '';
       };
 
-      utoy = haskellPackages.callPackage
+      utoy = pkgs.haskell.lib.justStaticExecutables (haskellPackages.callPackage
         ({ mkDerivation }:
         mkDerivation {
-          version = "0.5";
+          # Keep this in sync with package.yaml
+          version = "0.6";
           pname = "utoy";
           license = pkgs.lib.licenses.mit;
           src =
@@ -57,7 +58,7 @@
                 filter = path: _type: pkgs.lib.any (prefix: pkgs.lib.hasPrefix (toString prefix) path) whitelist;
               };
           libraryHaskellDepends = haskellDeps haskellPackages;
-        }) {};
+        }) {});
     in {
       packages.x86_64-linux = {
         inherit ghc;
@@ -70,7 +71,7 @@
             config.Cmd = [ "${utoy}/bin/utoy" ];
           };
 
-        default = pkgs.haskell.lib.justStaticExecutables utoy;
+        default = utoy;
       };
 
       devShells.x86_64-linux.default = pkgs.mkShell {
diff --git a/package.yaml b/package.yaml
index c1e5aad..7dec226 100644
--- a/package.yaml
+++ b/package.yaml
@@ -2,7 +2,7 @@
 
 name:                utoy
 # Keep this in sync with the version in flake.nix.
-version:             0.5
+version:             0.6
 git:                 "https://git.pbrinkmeier.de/paul/utoy"
 license:             MIT
 author:              "Paul Brinkmeier"
diff --git a/utoy.cabal b/utoy.cabal
index 9da9402..6a20409 100644
--- a/utoy.cabal
+++ b/utoy.cabal
@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack
 
 name:           utoy
-version:        0.5
+version:        0.6
 author:         Paul Brinkmeier
 maintainer:     hallo@pbrinkmeier.de
 copyright:      2023 Paul Brinkmeier