diff --git a/README.md b/README.md
index b79c76f..e6cadd6 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ This repo is bootstrapped with `npm create anywidget@latest`.
 ## Installation
 
 ```sh
-pip install widget_bzvisualizer
+pip install widget-bzvisualizer
 ```
 
 ## Development
diff --git a/pyproject.toml b/pyproject.toml
index 6bd04a0..f5323a4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [project]
-name = "widget_bzvisualizer"
+name = "widget-bzvisualizer"
 version = "0.2.0"
 dependencies = ["anywidget"]
 readme = "README.md"