diff --git a/common/hex.c b/common/hex.c
index f3d3b6c2..e8c0ec68 100644
--- a/common/hex.c
+++ b/common/hex.c
@@ -40,6 +40,7 @@
 #include "debug.h"
 #include "hex.h"
 
+#include <stdint.h>
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/subprojects/pkcs11-json b/subprojects/pkcs11-json
index 404c0232..f973d0f6 160000
--- a/subprojects/pkcs11-json
+++ b/subprojects/pkcs11-json
@@ -1 +1 @@
-Subproject commit 404c0232523d1cb0d219b25210d8ebbfde3486c7
+Subproject commit f973d0f6acebbe7ab2f4ab027b5adb32b97a758a