diff --git a/release.nix b/release.nix
index adf87f68a..53ab8ca5f 100644
--- a/release.nix
+++ b/release.nix
@@ -152,7 +152,7 @@ let
         src = tarball;
 
         buildInputs =
-          [ curl perl bzip2 openssl pkgconfig sqlite
+          [ curl perl bzip2 openssl pkgconfig sqlite xz libsodium
             # These are for "make check" only:
             graphviz libxml2 libxslt
           ];