diff --git a/pkgs/development/python-modules/deepsearch-toolkit/default.nix b/pkgs/development/python-modules/deepsearch-toolkit/default.nix
index d1b25adba3d5..876837e372d0 100644
--- a/pkgs/development/python-modules/deepsearch-toolkit/default.nix
+++ b/pkgs/development/python-modules/deepsearch-toolkit/default.nix
@@ -57,6 +57,7 @@ buildPythonPackage rec {
   ];
 
   pythonRelaxDeps = [
+    "certifi"
     "urllib3"
   ];