diff --git a/pyproject.toml b/pyproject.toml
index bfe48f5f2d..90332f4d2d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -307,6 +307,7 @@ core = 'sysmon'
 omit = [
   "src/aiida/tools/_dumping/**/*"
 ]
+patch = ['subprocess']
 
 [tool.flit.module]
 name = 'aiida'