diff --git a/Makefile b/Makefile
index d1bc21a..9bcd693 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 export PYTHONPATH := $(CURDIR)/tools/nrfutil:$(CURDIR)/tools/intelhex:$(PYTHONPATH)
 
 PYTHON ?= python3
-PYTEST ?= pytest-3
+PYTEST ?= $(PYTHON) -m pytest
 
 all : bootloader reloader micropython