diff --git a/README.md b/README.md
index 594b54d..11ce3e9 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,9 @@
   <summary><b>ChangeLog</b></summary>
   
 ````
-== 2024-02-07
+== 2024-02-14
+   * Enhancement/Bugfix: No usb midi response while 5sec startup #66
+== 2024-02-12
    * Enhancement/Bugfix: Unique midi device names (support multiple S&C devices for WebMidi #66)
 == 2024-02-07
    * Enhancement/Bugfix: DXFM (custom syx handling)
diff --git a/platformio.ini b/platformio.ini
index ef857ec..ed07d90 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -9,7 +9,7 @@
 
 [env]
 extra_scripts = pre:.pre_build.py
-lib_machine = 022e311  
+lib_machine = 06d5cd8  
 
 ;~/.platformio/penv/bin/pio run -v --environment SC_DSM0
 [env:SC_DSM0]