diff --git a/pkgs/development/python-modules/scikitlearn/default.nix b/pkgs/development/python-modules/scikitlearn/default.nix
index d806e562b5d5..a9bbad04ea78 100644
--- a/pkgs/development/python-modules/scikitlearn/default.nix
+++ b/pkgs/development/python-modules/scikitlearn/default.nix
@@ -8,6 +8,7 @@
 , cython
 , joblib
 , llvmPackages
+, threadpoolctl
 }:
 
 buildPythonPackage rec {
@@ -38,6 +39,7 @@ buildPythonPackage rec {
     scipy
     numpy.blas
     joblib
+    threadpoolctl
   ];
   checkInputs = [ pytest ];