diff --git a/overlay.nix b/overlay.nix
index 891e9a0..ad54704 100644
--- a/overlay.nix
+++ b/overlay.nix
@@ -67,9 +67,6 @@ extraPkgs // {
         });
     in chrony'.override {
       gnutls = null;
-      nss = null;
-      nspr = null;
-      readline = null;
       libedit = null;
       libseccomp = null;
       # should texinfo be in nativeBuildInputs instead of