diff --git a/README.rst b/README.rst
index 7f527bc8a..426a9d5d9 100644
--- a/README.rst
+++ b/README.rst
@@ -65,7 +65,7 @@ If your system uses a different kind of CPU, you should be able to install from
     make
 
     # Build the httpstan wheel on your system
-    python -m pip install "poetry~=1.7.1"
+    python -m pip install "poetry~=1.8"
     python3 -m poetry build
 
     # Install the wheel