diff --git a/README.md b/README.md
index 2cac2b87b4962db3064c91206d598d03a1a30c30..5eaa7c2ade5588c400575059b2511f30c851d934 100644
--- a/README.md
+++ b/README.md
@@ -56,7 +56,7 @@ conda install omero-py
  For everything else, use:
 
  ```bash 
-poetry --all-extras
+poetry install --all-extras
  ```
 
 - You may have an issue with Matlablib crashing.