diff --git a/pkgs/development/python-modules/flexcache/default.nix b/pkgs/development/python-modules/flexcache/default.nix
index 5e1389986fb7..76276a0bf567 100644
--- a/pkgs/development/python-modules/flexcache/default.nix
+++ b/pkgs/development/python-modules/flexcache/default.nix
@@ -13,7 +13,6 @@
 
   # checks
   pytestCheckHook,
-  pytest-mpl,
 }:
 
 buildPythonPackage rec {
@@ -38,7 +37,6 @@ buildPythonPackage rec {
 
   nativeCheckInputs = [
     pytestCheckHook
-    pytest-mpl
   ];
 
   pythonImportsCheck = [ "flexcache" ];