diff --git a/docs/getting_started/prerequisites.rst b/docs/getting_started/prerequisites.rst
index 0ed8517..65a66b6 100644
--- a/docs/getting_started/prerequisites.rst
+++ b/docs/getting_started/prerequisites.rst
@@ -67,7 +67,7 @@
 The following libraries are required for Trusted Board Boot and Measured Boot
 support:
 
-- mbed TLS == 2.28.0 (tag: ``mbedtls-2.28.0``)
+- mbed TLS == 2.28.1 (tag: ``mbedtls-2.28.1``)
 
 These tools are optional: