diff --git a/bento_lib/package.cfg b/bento_lib/package.cfg
index a5596a8..0b263b5 100644
--- a/bento_lib/package.cfg
+++ b/bento_lib/package.cfg
@@ -1,5 +1,5 @@
 [package]
 name = bento_lib
-version = 9.0.0a6
+version = 9.0.0a7
 authors = David Lougheed, Paul Pillot
 author_emails = david.lougheed@mail.mcgill.ca, paul.pillot@computationalgenomics.ca
diff --git a/bento_lib/workflows/models.py b/bento_lib/workflows/models.py
index e6464a7..c86d1da 100644
--- a/bento_lib/workflows/models.py
+++ b/bento_lib/workflows/models.py
@@ -74,7 +74,7 @@ class WorkflowEnumArrayInput(WorkflowBaseInput):
 
 
 class WorkflowProjectDatasetInput(WorkflowBaseInput):
-    type: Literal["project:dataset"]
+    type: Literal["project:dataset"] = "project:dataset"
 
 
 class WorkflowFileInput(WorkflowBaseInput):