diff --git a/pyhelm3/models.py b/pyhelm3/models.py
index ef915e8..9a2aedd 100644
--- a/pyhelm3/models.py
+++ b/pyhelm3/models.py
@@ -39,7 +39,7 @@ def __init__(self, _command: Command, **kwargs):
 
 
 #: Type for a name (chart or release)
-Name = constr(pattern = r"^[a-z0-9-]+$")
+Name = constr(pattern = r"^[a-zA-Z0-9-]+$")
 
 
 #: Type for a SemVer version