diff --git a/firmware/boards/picoquake.json b/firmware/boards/picoquake.json
index c6f6b90..03d42e6 100644
--- a/firmware/boards/picoquake.json
+++ b/firmware/boards/picoquake.json
@@ -33,7 +33,7 @@
     ],
     "name": "PicoQuake",
     "upload": {
-      "maximum_ram_size": 270336,
+      "maximum_ram_size": 262144,
       "maximum_size": 2097152,
       "require_upload_port": true,
       "native_usb": true,
diff --git a/firmware/platformio.ini b/firmware/platformio.ini
index ec383ae..8528400 100644
--- a/firmware/platformio.ini
+++ b/firmware/platformio.ini
@@ -9,7 +9,9 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [env]
-platform = https://github.com/maxgerhardt/platform-raspberrypi.git
+platform = https://github.com/maxgerhardt/platform-raspberrypi.git#a606be6
+platform_packages =
+   framework-arduinopico@https://github.com/earlephilhower/arduino-pico.git#4.2.0
 framework = arduino
 board_build.core = earlephilhower
 board_build.filesystem_size = 0.5m
diff --git a/firmware/src/main.cpp b/firmware/src/main.cpp
index 3c76f04..c952e4a 100644
--- a/firmware/src/main.cpp
+++ b/firmware/src/main.cpp
@@ -33,7 +33,7 @@ typedef struct ImuSendStruct {
 //
 
 
-static constexpr char FIRMWARE_VERSION[] =  "1.0.0";
+static constexpr char FIRMWARE_VERSION[] =  "1.0.1";
 
 // LED on when SPI transfer ongoing or LED on when state sampling
 // #define LED_ON_SPI_TRANSFER_DEBUG