diff --git a/README.md b/README.md
index 8f84371a..15b436a8 100644
--- a/README.md
+++ b/README.md
@@ -15,6 +15,9 @@ See the examples for basic usage options
 
 ## Changelog
 
+### V2.1.1 - 2024-09-16
+- fix minor bug in TP-Uart Driver (RX queue out of boundary)
+
 ### V2.1.0 - 2024-07-03
 - complete rework of the TPUart DataLinkLayer with support interrupt-based handling and optimized queue handling
 - added DMA support for RP2040 platform
diff --git a/library.json b/library.json
index a8ff4f3d..71fe2ebd 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
     "name": "knx",
-    "version": "2.1.0",
+    "version": "2.1.1",
     "dependencies": {
     },
     "description": "knx stack",
diff --git a/library.properties b/library.properties
index 8a6dcf82..b32852e0 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=knx
-version=2.1.0
+version=2.1.1
 author=Thomas Kunze, the OpenKNX Team, et. al.
 maintainer=OpenKNX Team
 sentence=knx stack