diff --git a/Makefile b/Makefile
index 00d3c21..225cb68 100644
--- a/Makefile
+++ b/Makefile
@@ -24,16 +24,14 @@ requirements.txt: poetry.lock
 
 lib/: requirements.txt
 	$(VENV) python -m pip install -r requirements.txt --target lib/
-	$(MAKE) compile_lib
-	$(MAKE) install_lib
 
-compile_lib:
+compile_lib: lib/
 	@for f in $(shell find lib/ -type f -regex ".+\.py"); do \
 		echo Compile $$f; \
 		$(MPYCROSS) $$f; \
 	done
 
-install_lib: lib_tree
+install_lib: compile_lib lib_tree
 	@for f in $(shell find lib/ -type f -regex ".+\.mpy"); do \
 		echo Uploading $$f; \
 		$(AMPY) put $$f $$f; \
@@ -55,9 +53,9 @@ erase_flash:
 flash_esp: erase_flash
 	$(ESP_TOOL) --baud 460800 write_flash --flash_size=detect 0 $(MICRO_PYTHON_FIRMWARE)
 
-install: check lib/ $(JUPYTER_PYTHON_FILES)
+install: check install_lib $(JUPYTER_PYTHON_FILES)
 	$(AMPY) put src/main.py
-	@for f in $(filter-out check lib/,$?); do \
+	@for f in $(filter-out check install_lib,$?); do \
 		echo Uploading $$f; \
 		$(AMPY) put $$f; \
 	done