diff --git a/DESCRIPTION b/DESCRIPTION
index b70cf3a..fa65d42 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Type: Package
 Package: fancr
 Title: Support Access to the Female Adult Nerve Cord (FANC) Dataset
-Version: 0.5.0
+Version: 0.5.1
 Authors@R: 
     person(given = "Gregory",
            family = "Jefferis",
diff --git a/NEWS.md b/NEWS.md
index f031cc8..f1f922d 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,11 @@
+# fancr 0.5.1
+
+* update `fanc_cave_query()` and `banc_cave_query()` to match changes in the 
+  underlying `fafbseg::flywire_cave_query()` crucially changing default from
+  `live=TRUE` to `live=!is.null(version)`.
+* By insisting on fafbseg >= 0.15.0 also provides support for new timetravel
+  argument / and CAVE live live query.
+
 # fancr 0.5.0
 
 ## What's Changed