diff --git a/setup.cfg b/setup.cfg
index fc20acd..5b72a6e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -29,7 +29,7 @@ install_requires =
     chardet
     importlib-metadata; python_version < "3.8"
     inators
-    psutil
+    psutil < 5.9.6  # FIXME: PyPy does not expose PyErr_SetExcFromWindowsErrWithFilenameObject on Windows, waiting for psutil workaround
 
 [options.entry_points]
 console_scripts =