diff --git a/pkgs/build-support/rust/default.nix b/pkgs/build-support/rust/default.nix
index 7cfd03a4e26..93770d71a10 100644
--- a/pkgs/build-support/rust/default.nix
+++ b/pkgs/build-support/rust/default.nix
@@ -181,6 +181,8 @@ stdenv.mkDerivation (args // {
 
   doCheck = args.doCheck or true;
 
+  strictDeps = true;
+
   inherit releaseDir;
 
   installPhase = args.installPhase or ''