diff --git a/sphinx-key/Cargo.toml b/sphinx-key/Cargo.toml
index 89b3cd6..892e2b0 100644
--- a/sphinx-key/Cargo.toml
+++ b/sphinx-key/Cargo.toml
@@ -20,7 +20,7 @@ pingpong = []
 
 [dependencies]
 bitflags = "1.3.2"
-esp-idf-sys = { version = "0.31.5", features = ["binstart"] }
+esp-idf-sys = { version = "0.31.6", features = ["binstart"] }
 sphinx-key-signer = { path = "../signer", optional = true }
 sphinx-key-crypter = { path = "../crypter" }
 embedded-svc = { version = "0.21.2" }
diff --git a/sphinx-key/sdkconfig.defaults b/sphinx-key/sdkconfig.defaults
index 0e8ebf9..6de6b1b 100644
--- a/sphinx-key/sdkconfig.defaults
+++ b/sphinx-key/sdkconfig.defaults
@@ -1,5 +1,5 @@
 # Rust often needs a bit of an extra main task stack size compared to C (the default is 3K)
-CONFIG_ESP_MAIN_TASK_STACK_SIZE=32000
+CONFIG_ESP_MAIN_TASK_STACK_SIZE=64000
 
 # Use this to set FreeRTOS kernel tick frequency to 1000 Hz (100 Hz by default).
 # This allows to use 1 ms granuality for thread sleeps (10 ms by default).