diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6d5a809..335baa8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -62,7 +62,7 @@ target_sources(pico_hsm PUBLIC
         ${CMAKE_CURRENT_LIST_DIR}/src/hsm/oid.c
 
         )
-set(HSM_DRIVER "ccid")
+set(USB_ITF_CCID 1)
 include(pico-hsm-sdk/pico_hsm_sdk_import.cmake)
 
 target_include_directories(pico_hsm PUBLIC
diff --git a/pico-hsm-sdk b/pico-hsm-sdk
index fa54da9..e99757e 160000
--- a/pico-hsm-sdk
+++ b/pico-hsm-sdk
@@ -1 +1 @@
-Subproject commit fa54da973caa6ca2f861cf59634d529af8bc5894
+Subproject commit e99757ed52132a55ca6b1711ccf503b2a2708e91
diff --git a/tools/pico-hsm-patch-vidpid.sh b/tools/pico-hsm-patch-vidpid.sh
index 79bb0a8..c2881db 100755
--- a/tools/pico-hsm-patch-vidpid.sh
+++ b/tools/pico-hsm-patch-vidpid.sh
@@ -17,8 +17,8 @@
 # along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 
-VERSION_MAJOR="3" #Version of Pico CCID Core
-VERSION_MINOR="4"
+VERSION_MAJOR="4" #Version of Pico CCID Core
+VERSION_MINOR="0"
 
 echo "----------------------------"
 echo "VID/PID patcher for Pico HSM"