diff --git a/DESCRIPTION b/DESCRIPTION
index fb237bb..e695d61 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: RcppHNSW
 Title: 'Rcpp' Bindings for 'hnswlib', a Library for Approximate Nearest Neighbors
-Version: 0.5.0
+Version: 0.5.9000
 Authors@R: c(person("James", "Melville", email = "jlmelville@gmail.com", 
   role = c("aut", "cre")), 
   person("Aaron", "Lun", role = "ctb"), 
diff --git a/NEWS.md b/NEWS.md
index 47773a5..4d161e1 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,5 @@
+# RcppHNSW 0.5.9000
+
 # RcppHNSW 0.5.0
 
 ## New features