1 files changed, 6 insertions, 3 deletions
diff --git a/pkgs/applications/networking/instant-messengers/fractal-next/default.nix b/pkgs/applications/networking/instant-messengers/fractal-next/default.nix
index 360234ba3c699..3a2d5da373d67 100644
--- a/pkgs/applications/networking/instant-messengers/fractal-next/default.nix
+++ b/pkgs/applications/networking/instant-messengers/fractal-next/default.nix
@@ -33,9 +33,12 @@ stdenv.mkDerivation rec {
     hash = "sha256-gHMfBGrq3HiGeqHx2knuc9LomgIW9QA9fCSCcQncvz0=";
   };
 
-  cargoDeps = rustPlatform.fetchCargoTarball {
-    inherit src;
-    hash = "sha256-fTETUD/OaOati5HvNxto5Cw26wMclt6mxPLm4cyE3+0=";
+  cargoDeps = rustPlatform.importCargoLock {
+    lockFile = ./Cargo.lock;
+    outputHashes = {
+      "indexed_db_futures-0.2.3" = "sha256-yAG2gqMclkyQNfb+gG+YlPX46rKSKGAmagQqlcP6gr8=";
+      "matrix-sdk-0.5.0" = "sha256-qti8NEl8nhGLclX3AjF5X+RLX8AH2CQw/Z+uL3wRMp4=";
+    };
   };
 
   nativeBuildInputs = [