diff --git a/pico_keys_sdk_import.cmake b/pico_keys_sdk_import.cmake
index 2173d0d..46e7655 100644
--- a/pico_keys_sdk_import.cmake
+++ b/pico_keys_sdk_import.cmake
@@ -124,7 +124,7 @@ if(NOT ESP_PLATFORM)
         add_definitions(-DMBEDTLS_ECP_DP_ED25519_ENABLED=1 -DMBEDTLS_ECP_DP_ED448_ENABLED=1 -DMBEDTLS_EDDSA_C=1 -DMBEDTLS_SHA3_C=1)
     else()
         set(MBEDTLS_ORIGIN "https://github.com/Mbed-TLS/mbedtls.git")
-        set(MBEDTLS_REF "v3.6.3")
+        set(MBEDTLS_REF "v3.6.5")
     endif()
 
     execute_process(