diff --git a/cumulusci/schema/cumulusci.jsonschema.json b/cumulusci/schema/cumulusci.jsonschema.json
index 255d2de4d4..4959bff237 100644
--- a/cumulusci/schema/cumulusci.jsonschema.json
+++ b/cumulusci/schema/cumulusci.jsonschema.json
@@ -421,7 +421,7 @@
                 },
                 "namespaced": {
                     "title": "Namespaced",
-                    "type": "string"
+                    "type": "boolean"
                 },
                 "setup_flow": {
                     "title": "Setup Flow",
diff --git a/cumulusci/utils/yaml/cumulusci_yml.py b/cumulusci/utils/yaml/cumulusci_yml.py
index 78cc9ac960..918f92a40a 100644
--- a/cumulusci/utils/yaml/cumulusci_yml.py
+++ b/cumulusci/utils/yaml/cumulusci_yml.py
@@ -147,7 +147,7 @@ class Project(CCIDictModel):
 class ScratchOrg(CCIDictModel):
     config_file: Path = None
     days: int = None
-    namespaced: str = None
+    namespaced: bool = None
     setup_flow: str = None
     noancestors: bool = None
     release: Literal["preview", "previous"] = None