diff --git a/pyproject.toml b/pyproject.toml
index 6196158..4155a59 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ authors = [
 ]
 requires-python = '~= 3.11'
 dependencies = [
-    'betty == 0.3.8',
+    'betty == 0.3.9',
     'click ~= 8.1, >= 8.1.2',
 ]