diff --git a/DESCRIPTION b/DESCRIPTION
index c9bca24..424bad8 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: nycflights13
 Title: Flights that Departed NYC in 2013
-Version: 0.2.1
+Version: 0.2.1.9000
 Authors@R: c(
     person("Hadley", "Wickham", , "hadley@rstudio.com", c("aut", "cre")),
     person("RStudio", role = "cph")
diff --git a/NEWS.md b/NEWS.md
index 9c41211..b9ae2fd 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,5 @@
+# nycflights13 0.2.1.9000
+
 # nycflights13 0.2.1
 
 * nycflights imports tibble so you get nice printing even when no other