diff --git a/library.json b/library.json
index db17afd..be3490b 100644
--- a/library.json
+++ b/library.json
@@ -11,7 +11,7 @@
     "type": "git",
     "url": "https://github.com/ssilverman/TeensyDMX"
   },
-  "version": "4.1.0-beta",
+  "version": "4.1.0-beta.1",
   "license": "BSD-3-Clause-Clear",
   "homepage": "https://github.com/ssilverman/TeensyDMX",
   "frameworks": "arduino",
diff --git a/library.properties b/library.properties
index 29e50e7..5dae3ae 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=TeensyDMX
-version=4.1.0-beta
+version=4.1.0-beta.1
 author=Shawn Silverman <shawn@pobox.com>
 maintainer=Shawn Silverman <shawn@pobox.com>
 sentence=A full-featured DMX library for Teensy 3, Teensy LC, and Teensy 4.