diff --git a/flake.nix b/flake.nix
index 36a1eb0..542138d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -25,7 +25,7 @@
           owner = "sstallion";
           repo = "vimwiki-cli";
           rev = "v${version}";
-          sha = "";
+          sha256 = "4XvI5XCSXisuVGG5HZTiuFIw3phUmqr2m/jtmerM8WE=";
         };
         bulidInputs = [ python-deps ];
         propagatedBuildInputs = [ python-deps ];