diff --git a/DESCRIPTION b/DESCRIPTION
index ac93e83c7..d80d51a39 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Type: Package
 Package: sdmTMB
 Title: Spatial and Spatiotemporal SPDE-Based GLMMs with 'TMB'
-Version: 0.4.0
+Version: 0.4.0.9000
 Authors@R: c(
     person(c("Sean", "C."), "Anderson", , "sean@seananderson.ca",
            role = c("aut", "cre"),
diff --git a/NEWS.md b/NEWS.md
index 976478d32..8cf3b7ece 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,5 @@
+# sdmTMB (development version)
+
 # sdmTMB 0.4.0
 
 * Move add_barrier_mesh() to sdmTMBextra to avoid final INLA dependency.