diff --git a/README.md b/README.md
index 250c7d1..f379c47 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
-ACTS 1.3
-========
+ACTS 1.4b1
+==========
 
 Another Calendar-based Tarsnap Script.
 
diff --git a/acts b/acts
index 8b674b9..e70209b 100755
--- a/acts
+++ b/acts
@@ -5,7 +5,7 @@ set -u
 # Exit if a pipeline exits non-zero
 set -e
 
-VERSION="1.3"
+VERSION="1.4b1"
 
 if [ "$#" = "1" ] && [ "$1" = "--version" ]; then
     echo "acts version $VERSION"