diff --git a/DESCRIPTION b/DESCRIPTION
index b4ab958..79411bb 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Type: Package
 Package: openairmaps
 Title: Create Maps of Air Pollution Data
-Version: 0.9.1
+Version: 0.9.1.9000
 Authors@R: c(
     person("Jack", "Davison", , "jack.davison@ricardo.com", role = c("cre", "aut"),
            comment = c(ORCID = "0000-0003-2653-6615")),
diff --git a/NEWS.md b/NEWS.md
index a920e64..3b5c454 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,5 @@
+# openairmaps (development version)
+
 # openairmaps 0.9.1
 
 ## New features