diff --git a/Makefile b/Makefile
index 6e55e4c7a..06208ad98 100644
--- a/Makefile
+++ b/Makefile
@@ -67,7 +67,7 @@ debug:
 	CFLAGS='-g -O0' python3 setup.py build_ext install > /dev/null
 
 install-req:
-	pip install -r requirements.txt
+	python3 -m pip install -r requirements.txt
 
 install-venv:
 	virtualenv .