diff --git a/library.json b/library.json
index 9822a1c0..dd651320 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
     "name": "RadioLib",
-    "version": "6.3.0",
+    "version": "6.4.0",
     "description": "Universal wireless communication library. User-friendly library for sub-GHz radio modules (SX1278, RF69, CC1101, SX1268, and many others), as well as ham radio digital modes (RTTY, SSTV, AX.25 etc.) and other protocols (Pagers, LoRaWAN).",
     "keywords": "radio, communication, morse, cc1101, aprs, sx1276, sx1278, sx1272, rtty, ax25, afsk, nrf24, rfm96, sx1231, rfm96, rfm98, sstv, sx1278, sx1272, sx1276, sx1280, sx1281, sx1282, sx1261, sx1262, sx1268, si4432, rfm22, llcc68, pager, pocsag, lorawan",
     "homepage": "https://github.com/jgromes/RadioLib",
diff --git a/library.properties b/library.properties
index 8dda9bb6..4685c4f0 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=RadioLib
-version=6.3.0
+version=6.4.0
 author=Jan Gromes <gromes.jan@gmail.com>
 maintainer=Jan Gromes <gromes.jan@gmail.com>
 sentence=Universal wireless communication library
diff --git a/src/BuildOpt.h b/src/BuildOpt.h
index a95b6cdd..a981263a 100644
--- a/src/BuildOpt.h
+++ b/src/BuildOpt.h
@@ -528,7 +528,7 @@
 
 // version definitions
 #define RADIOLIB_VERSION_MAJOR  6
-#define RADIOLIB_VERSION_MINOR  3
+#define RADIOLIB_VERSION_MINOR  4
 #define RADIOLIB_VERSION_PATCH  0
 #define RADIOLIB_VERSION_EXTRA  0