diff --git a/Makefile b/Makefile
index 09d05424a4..0ccaeaaa35 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,7 @@
 SHELL = /bin/bash
 
+export PIP_USE_PEP517 := false
+
 VENV_PATH = .venv
 
 help:
diff --git a/tox.ini b/tox.ini
index 0dc3795a17..762a7c2583 100644
--- a/tox.ini
+++ b/tox.ini
@@ -131,6 +131,7 @@ deps =
     linters: mypy
 setenv =
     PYTHONDONTWRITEBYTECODE=1
+    PIP_USE_PEP517=false
     TESTPATH=tests
     django: TESTPATH=tests/integrations/django
     flask: TESTPATH=tests/integrations/flask