diff --git a/pkgs/tools/package-management/lix/common-lix.nix b/pkgs/tools/package-management/lix/common-lix.nix
index b783fe1671d5..924780ba78b5 100644
--- a/pkgs/tools/package-management/lix/common-lix.nix
+++ b/pkgs/tools/package-management/lix/common-lix.nix
@@ -128,27 +128,6 @@ let
         printf "%s" "$input" > $out
         substituteInPlace $out --replace-fail @deps@ "$(cat ${deps})"
       '';
-
-  # curl 8.21.0 /somehow/ breaks Lix unit tests.
-  # See https://github.com/NixOS/nixpkgs/issues/534713
-  # FIXME remove once fixed
-  curl-fixed = curl.overrideAttrs (
-    {
-      patches ? [ ],
-      ...
-    }:
-    {
-      patches = patches ++ [
-        # See https://github.com/curl/curl/commit/2a2104f3cff44bb28bb570a093be52bbeeed8f23
-        (fetchpatch2 {
-          name = "fix-wakeup-consumption-revert.patch";
-          url = "https://github.com/curl/curl/commit/2a2104f3cff44bb28bb570a093be52bbeeed8f23.patch";
-          hash = "sha256-dkwr1ZaR7XB408JxeIKhuHxJrlwf3J01jL6lnOLXo1I=";
-          revert = true;
-        })
-      ];
-    }
-  );
 in
 # gcc miscompiles coroutines at least until 13.2, possibly longer
 # do not remove this check unless you are sure you (or your users) will not report bugs to Lix upstream about GCC miscompilations.
@@ -266,14 +245,14 @@ stdenv.mkDerivation (finalAttrs: {
   ++ lib.optionals stdenv.hostPlatform.isLinux [ util-linuxMinimal ]
   ++ lib.optionals (lib.versionAtLeast version "2.94") [ zstd ]
   ++ lib.optionals (withPlugins && finalAttrs.doInstallCheck) [
-    curl-fixed
+    curl
   ];
 
   buildInputs = [
     boost
     brotli
     bzip2
-    curl-fixed
+    curl
     capnproto
     editline
     openssl