diff --git a/crates/pet-poetry/src/pyproject_toml.rs b/crates/pet-poetry/src/pyproject_toml.rs
index 0bd785ad..9e753282 100644
--- a/crates/pet-poetry/src/pyproject_toml.rs
+++ b/crates/pet-poetry/src/pyproject_toml.rs
@@ -6,7 +6,14 @@ use std::{
     path::{Path, PathBuf},
 };
 
+use lazy_static::lazy_static;
 use log::{error, trace};
+use regex::Regex;
+
+lazy_static! {
+    static ref NORMALIZE_NAME: Regex = Regex::new(r"[-_.]+")
+        .expect("Error generating RegEx for poetry project name normalization");
+}
 
 #[derive(Debug)]
 pub struct PyProjectToml {
@@ -15,8 +22,17 @@ pub struct PyProjectToml {
 
 impl PyProjectToml {
     fn new(name: String, file: PathBuf) -> Self {
-        trace!("Poetry project: {:?} with name {:?}", file, name);
-        PyProjectToml { name }
+        // Source from https://github.com/python-poetry/poetry-core/blob/a2c068227358984d835c9684de723b046bdcd67a/src/poetry/core/_vendor/packaging/utils.py#L46-L51
+        // normalized_name = re.sub(r"[-_.]+", "-", name).lower()
+        let normalized_name = NORMALIZE_NAME
+            .replace_all(&name.to_lowercase(), "-")
+            .chars()
+            .collect::<String>();
+
+        trace!("Poetry project: {:?} with name {:?}", file, normalized_name);
+        PyProjectToml {
+            name: normalized_name,
+        }
     }
     pub fn find(path: &Path) -> Option<Self> {
         trace!("Finding poetry file in {:?}", path);
@@ -85,6 +101,32 @@ readme = "README.md"
 python = "^3.12"
 
 
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
+"#;
+        assert_eq!(
+            parse_contents(cfg, Path::new("pyproject.toml"))
+                .unwrap()
+                .name,
+            "poetry-demo"
+        );
+    }
+
+    #[test]
+    fn extract_normalized_name_from_pyproject_toml() {
+        let cfg = r#"
+[tool.poetry]
+name = "poetry_.demo"
+version = "0.1.0"
+description = ""
+authors = ["User Name <bogus.user@some.email.com>"]
+readme = "README.md"
+
+[tool.poetry.dependencies]
+python = "^3.12"
+
+
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"
diff --git a/crates/pet-python-utils/src/cache.rs b/crates/pet-python-utils/src/cache.rs
index 00b64282..e0575a86 100644
--- a/crates/pet-python-utils/src/cache.rs
+++ b/crates/pet-python-utils/src/cache.rs
@@ -91,7 +91,7 @@ impl CacheImpl {
             Entry::Occupied(lock) => lock.get().clone(),
             Entry::Vacant(lock) => {
                 let cache = Box::new(CacheEntryImpl::create(cache_directory.clone(), executable))
-                    as Box<(dyn CacheEntry + 'static)>;
+                    as Box<dyn CacheEntry + 'static>;
                 lock.insert(Arc::new(Mutex::new(cache))).clone()
             }
         }