diff --git a/flake.nix b/flake.nix
index 0769b25..7c96b05 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,6 +31,7 @@
           nativeBuildInputs = [
             cargo
             cargo-outdated
+            certstrap
             clippy
             diesel-cli
             exiftool