diff --git a/script/tf-coverity/common-def.sh b/script/tf-coverity/common-def.sh
index e92bba7..c4ceabc 100644
--- a/script/tf-coverity/common-def.sh
+++ b/script/tf-coverity/common-def.sh
@@ -12,7 +12,7 @@
 
 # mbed TLS source tag to checkout when building Trusted Firmware with Trusted
 # Board Boot support.
-MBED_TLS_SOURCES_TAG="mbedtls-2.18.0"
+MBED_TLS_SOURCES_TAG="mbedtls-2.24.0"
 
 ARMCLANG_PATH=/arm/warehouse/Distributions/FA/ARMCompiler/6.8/25/standalone-linux-x86_64-rel/bin/armclang
 CRYPTOCELL_LIB_PATH=/arm/projectscratch/ssg/trusted-fw/dummy-crypto-lib