diff --git a/DESCRIPTION b/DESCRIPTION
index 2a48ebda..dade1817 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: dust2
 Title: Next Generation dust
-Version: 0.1.19
+Version: 0.1.20
 Authors@R: c(person("Rich", "FitzJohn", role = c("aut", "cre"),
                     email = "rich.fitzjohn@gmail.com"),
              person("Imperial College of Science, Technology and Medicine",