diff --git a/pkgs/applications/version-management/sapling/default.nix b/pkgs/applications/version-management/sapling/default.nix
index 3a51d280db56..8e77f2d3cc6c 100644
--- a/pkgs/applications/version-management/sapling/default.nix
+++ b/pkgs/applications/version-management/sapling/default.nix
@@ -13,7 +13,7 @@
 , fetchYarnDeps
 , yarn
 , nodejs
-, fixup_yarn_lock
+, prefetch-yarn-deps
 , glibcLocales
 , libiconv
 , Cocoa
@@ -66,7 +66,7 @@ let
     inherit version;
 
     nativeBuildInputs = [
-      fixup_yarn_lock
+      prefetch-yarn-deps
       nodejs
       yarn
     ];
@@ -75,7 +75,7 @@ let
       runHook preBuild
 
       export HOME=$(mktemp -d)
-      fixup_yarn_lock yarn.lock
+      fixup-yarn-lock yarn.lock
       yarn config --offline set yarn-offline-mirror ${yarnOfflineCache}
       yarn install --offline --frozen-lockfile --ignore-engines --ignore-scripts --no-progress
       patchShebangs node_modules