diff --git a/pkgs/development/python-modules/safetensors/default.nix b/pkgs/development/python-modules/safetensors/default.nix
index b0a20ac9e064..7a695ce0d610 100644
--- a/pkgs/development/python-modules/safetensors/default.nix
+++ b/pkgs/development/python-modules/safetensors/default.nix
@@ -19,6 +19,7 @@
   pytest,
   pytest-benchmark,
   hypothesis,
+  fsspec,
 
   # tests
   pytestCheckHook,
@@ -81,6 +82,7 @@ buildPythonPackage rec {
       pytest
       pytest-benchmark
       hypothesis
+      fsspec
     ];
     all = self.torch ++ self.numpy ++ self.pinned-tf ++ self.jax ++ self.paddlepaddle ++ self.testing;
     dev = self.all;
@@ -91,6 +93,7 @@ buildPythonPackage rec {
     numpy
     pytestCheckHook
     torch
+    fsspec
   ];
 
   enabledTestPaths = [ "tests" ];