diff --git a/library.properties b/library.properties
index e1cf56e0..84445c26 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=RadioLib
-version=5.1.0
+version=5.1.1
 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 37f3a426..24a15506 100644
--- a/src/BuildOpt.h
+++ b/src/BuildOpt.h
@@ -990,7 +990,7 @@
 // version definitions
 #define RADIOLIB_VERSION_MAJOR  (0x05)
 #define RADIOLIB_VERSION_MINOR  (0x01)
-#define RADIOLIB_VERSION_PATCH  (0x00)
+#define RADIOLIB_VERSION_PATCH  (0x01)
 #define RADIOLIB_VERSION_EXTRA  (0x00)
 
 #define RADIOLIB_VERSION ((RADIOLIB_VERSION_MAJOR << 24) | (RADIOLIB_VERSION_MINOR << 16) | (RADIOLIB_VERSION_PATCH << 8) | (RADIOLIB_VERSION_EXTRA))