diff --git a/CHANGELOG.md b/CHANGELOG.md
index e02be1e..9082bca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,8 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ### Changed
 
+- Upgrade to Mbed TLS version [3.6.7](https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.7).
+
 ## [0.6.4] - 2026-10-09
 
 - Upgrade to open62541 version [1.5.9](https://github.com/open62541/open62541/releases/tag/v1.5.9).
diff --git a/mbedtls b/mbedtls
index 0bebf8b..068ff08 160000
--- a/mbedtls
+++ b/mbedtls
@@ -1 +1 @@
-Subproject commit 0bebf8b8c7f07abe3571ded48a11aa907a1ffb20
+Subproject commit 068ff080b369adfac81509f9b57b2afabaf82dc5