diff --git a/extmod/modtrezorcrypto/ssss.h b/extmod/modtrezorcrypto/ssss.h
index 5fc12b78..6d8e50d6 100644
--- a/extmod/modtrezorcrypto/ssss.h
+++ b/extmod/modtrezorcrypto/ssss.h
@@ -2,7 +2,7 @@
 #define __SSSS_H__
 
 #include <stdbool.h>
-#include "bignum.h"
+#include "trezor-crypto/bignum.h"
 
 bool ssss_split(const bignum256 *secret, int m, int n, bignum256 *shares);
 bool ssss_combine(const bignum256 *shares, int n, bignum256 *secret);
diff --git a/vendor/micropython b/vendor/micropython
index 610d13cc..e49cf4f7 160000
--- a/vendor/micropython
+++ b/vendor/micropython
@@ -1 +1 @@
-Subproject commit 610d13cc67caf921059d27ddff674f2bd407db25
+Subproject commit e49cf4f7674b7dde678e0e8e34942e35c1b27344