diff --git a/pkgs/development/python-modules/chromadb/default.nix b/pkgs/development/python-modules/chromadb/default.nix
index 2042758efd8a..471b6111a93d 100644
--- a/pkgs/development/python-modules/chromadb/default.nix
+++ b/pkgs/development/python-modules/chromadb/default.nix
@@ -132,6 +132,7 @@ buildPythonPackage rec {
   pytestFlagsArray = [ "-x" ];
 
   preCheck = ''
+    (($(ulimit -n) < 1024)) && ulimit -n 1024
     export HOME=$(mktemp -d)
   '';