diff --git a/ChangeLog.d/fix_build_error_for_mbedtls_deprecated_removed.txt b/ChangeLog.d/fix_build_error_for_mbedtls_deprecated_removed.txt
new file mode 100644
index 0000000..a70521a
--- /dev/null
+++ b/ChangeLog.d/fix_build_error_for_mbedtls_deprecated_removed.txt
@@ -0,0 +1,3 @@
+Bugfix
+    * Fix build error due to missing prototype
+      warning when MBEDTLS_DEPRECATED_REMOVED is enabled
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index eefd89d..d3067e3 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -2502,6 +2502,7 @@
 }
 #endif /* MBEDTLS_SSL_DTLS_SRTP */
 
+#if !defined(MBEDTLS_DEPRECATED_REMOVED)
 void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor )
 {
     conf->max_tls_version = (major << 8) | minor;
@@ -2511,6 +2512,7 @@
 {
     conf->min_tls_version = (major << 8) | minor;
 }
+#endif /* MBEDTLS_DEPRECATED_REMOVED */
 
 #if defined(MBEDTLS_SSL_SRV_C)
 void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf,