diff -Naur grpc-1.39.0-original/src/objective-c/tests/CronetTests/CronetUnitTests.mm grpc-1.39.0/src/objective-c/tests/CronetTests/CronetUnitTests.mm
--- grpc-1.39.0-original/src/objective-c/tests/CronetTests/CronetUnitTests.mm	2021-07-20 18:39:39.000000000 -0400
+++ grpc-1.39.0/src/objective-c/tests/CronetTests/CronetUnitTests.mm	2021-07-23 14:42:11.649278304 -0400
@@ -103,7 +103,7 @@
   BIO_free(pem);
 
   // Select cipher suite
-  SSL_CTX_set_cipher_list(ctx, "ECDHE-RSA-AES128-GCM-SHA256");
+  SSL_CTX_set_cipher_list(ctx, "PROFILE=SYSTEM");
 
   // Select ALPN protocol
   SSL_CTX_set_alpn_select_cb(ctx, alpn_cb, NULL);
diff -Naur grpc-1.39.0-original/test/core/handshake/client_ssl.cc grpc-1.39.0/test/core/handshake/client_ssl.cc
--- grpc-1.39.0-original/test/core/handshake/client_ssl.cc	2021-07-20 18:39:39.000000000 -0400
+++ grpc-1.39.0/test/core/handshake/client_ssl.cc	2021-07-23 14:41:27.549570232 -0400
@@ -220,9 +220,7 @@
 
   // Set the cipher list to match the one expressed in
   // src/core/tsi/ssl_transport_security.cc.
-  const char* cipher_list =
-      "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-"
-      "SHA384:ECDHE-RSA-AES256-GCM-SHA384";
+  const char* cipher_list = "PROFILE=SYSTEM";
   if (!SSL_CTX_set_cipher_list(ctx, cipher_list)) {
     ERR_print_errors_fp(stderr);
     gpr_log(GPR_ERROR, "Couldn't set server cipher list.");
diff -Naur grpc-1.39.0-original/test/core/handshake/server_ssl_common.cc grpc-1.39.0/test/core/handshake/server_ssl_common.cc
--- grpc-1.39.0-original/test/core/handshake/server_ssl_common.cc	2021-07-20 18:39:39.000000000 -0400
+++ grpc-1.39.0/test/core/handshake/server_ssl_common.cc	2021-07-23 14:41:14.369657480 -0400
@@ -204,9 +204,7 @@
 
   // Set the cipher list to match the one expressed in
   // src/core/tsi/ssl_transport_security.c.
-  const char* cipher_list =
-      "ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES256-"
-      "SHA384:ECDHE-RSA-AES256-GCM-SHA384";
+  const char* cipher_list = "PROFILE=SYSTEM";
   if (!SSL_CTX_set_cipher_list(ctx, cipher_list)) {
     ERR_print_errors_fp(stderr);
     gpr_log(GPR_ERROR, "Couldn't set server cipher list.");