diff --git a/Makefile b/Makefile
index 4b34086..cc6b193 100644
--- a/Makefile
+++ b/Makefile
@@ -2,14 +2,23 @@ CLEUSB=Cle8G
 
 COMMON_EXCLUDE=--exclude "__pycache__" --exclude "venv/" --exclude ".git" --exclude ".gitignore"  --exclude ".*"
 
+VENV="enseignements"
+
 install:
 	git config core.hooksPath ./tools/git/hooks/
-	python -m venv ~/.venv/enseignements/
+	python -m venv ~/.venv/$(VENV)
 	( \
-		. ~/.venv/enseignements/bin/activate;\
+		. ~/.venv/$(VENV)/bin/activate;\
 		pip install -r requirements.txt;\
 		)
 
+update:
+	( \
+		. ~/.venv/$(VENV)/bin/activate;\
+		pip install --ignore-installed -r requirements.txt
+		)
+
+
 clean:
 	git clean -idx -e venv/ -e video/