diff --git a/script/tf-coverity/common-def.sh b/script/tf-coverity/common-def.sh
index dc92d44..6e17ea9 100644
--- a/script/tf-coverity/common-def.sh
+++ b/script/tf-coverity/common-def.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 #
-# Copyright (c) 2019-2022 Arm Limited. All rights reserved.
+# Copyright (c) 2019-2023 Arm Limited. All rights reserved.
 #
 # SPDX-License-Identifier: BSD-3-Clause
 #
@@ -80,7 +80,7 @@
 
 # mbed TLS source tag to checkout when building Trusted Firmware with
 # cryptography support (e.g. for Trusted Board Boot feature).
-MBED_TLS_SOURCES_TAG="mbedtls-2.28.1"
+MBED_TLS_SOURCES_TAG="mbedtls-3.3.0"
 
 ARMCLANG_PATH="$(set_armclang_toolchain)"