diff --git a/README.md b/README.md
index 8024bc0b..6151fd76 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ in development environment.
 * install dependencies (Debian/Ubuntu)
 
         $ sudo apt-get update
-        $ sudo apt-get install -y gcc python3-dev
+        $ sudo apt-get install -y gcc python3-dev python3-venv
 
 * prepare directory for project code and virtualenv: