diff --git a/include/mbedtls/config.h b/include/mbedtls/config.h
index 1da9802..83a07d0 100644
--- a/include/mbedtls/config.h
+++ b/include/mbedtls/config.h
@@ -3030,7 +3030,7 @@
  *
  * \note See also our Knowledge Base article about porting to a new
  * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
+ * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
  *
  * Module:  library/net_sockets.c
  *
@@ -3456,7 +3456,7 @@
  * contexts are not shared between threads. If you do intend to use contexts
  * between threads, you will need to enable this layer to prevent race
  * conditions. See also our Knowledge Base article about threading:
- * https://tls.mbed.org/kb/development/thread-safety-and-multi-threading
+ * https://mbed-tls.readthedocs.io/en/latest/kb/development/thread-safety-and-multi-threading
  *
  * Module:  library/threading.c
  *
@@ -3488,7 +3488,7 @@
  *
  * \note See also our Knowledge Base article about porting to a new
  * environment:
- * https://tls.mbed.org/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
+ * https://mbed-tls.readthedocs.io/en/latest/kb/how-to/how-do-i-port-mbed-tls-to-a-new-environment-OS
  *
  * Module:  library/timing.c
  * Caller:  library/havege.c