diff --git a/cmd/update_api.go b/cmd/update_api.go
index 4592123..4c3bb06 100644
--- a/cmd/update_api.go
+++ b/cmd/update_api.go
@@ -160,7 +160,7 @@ func updateCRDBytes(crd *apiextensionsv1.CustomResourceDefinition) ([]byte, erro
 			propNames := strings.Split(parsedProps[0], ".")
 			propType := parsedProps[1]
 
-			if !slices.Contains([]string{"string", "number", "integer", "object"}, propType) {
+			if !slices.Contains([]string{"string", "number", "integer", "object", "boolean"}, propType) {
 				return nil, fmt.Errorf("unsupported property type: %s", propType)
 			}
 
diff --git a/test/update_test.go b/test/update_test.go
index 84190e8..27e15db 100644
--- a/test/update_test.go
+++ b/test/update_test.go
@@ -46,7 +46,7 @@ var _ = Describe("update", func() {
 		When("called with --help", func() {
 			It("prints the help", func() {
 				session := r.run("update", "api", "--help")
-				Expect(session.Out).To(gbytes.Say("Command to update promise API"))
+				Expect(session.Out).To(gbytes.Say("Command to update the Promise API"))
 			})
 		})