diff --git a/DEPS b/DEPS
index 6c388b195b..e5aea9728f 100644
--- a/DEPS
+++ b/DEPS
@@ -1,9 +1,6 @@
 # This file contains dependencies for WebRTC.
 
 gclient_gn_args_file = 'src/build/config/gclient_args.gni'
-gclient_gn_args = [
-  'mac_xcode_version',
-]
 
 vars = {
   # By default, we should check out everything needed to run on the main
@@ -11,11 +8,6 @@ vars = {
   'checkout_configuration': 'default',
   'checkout_instrumented_libraries': 'checkout_linux and checkout_configuration == "default"',
   'chromium_revision': '32410c4f6c92a8019fabbf73520fcb91561771aa',
-
-  # This can be overridden, e.g. with custom_vars, to download a nonstandard
-  # Xcode version in build/mac_toolchain.py
-  # instead of downloading the prebuilt pinned revision.
-  'mac_xcode_version': 'default',
 }
 
 deps = {
@@ -3039,8 +3031,7 @@ hooks = [
     'name': 'mac_toolchain',
     'pattern': '.',
     'condition': 'checkout_mac',
-    'action': ['python', 'src/build/mac_toolchain.py',
-               '--xcode-version', Var('mac_xcode_version')],
+    'action': ['python', 'src/build/mac_toolchain.py'],
   },
   {
     # Note: On Win, this should run after win_toolchain, as it may use it.