diff --git a/recipes/recipe_modules/osx_sdk/api.py b/recipes/recipe_modules/osx_sdk/api.py
index d50731464..a308fc818 100644
--- a/recipes/recipe_modules/osx_sdk/api.py
+++ b/recipes/recipe_modules/osx_sdk/api.py
@@ -15,7 +15,7 @@ from recipe_engine import recipe_api
 # implemented with a proto message.
 _PROPERTY_DEFAULTS = {
   'toolchain_pkg': 'infra/tools/mac_toolchain/${platform}',
-  'toolchain_ver': 'git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748',
+  'toolchain_ver': 'git_revision:723fc1a6c8cdf2631a57851f5610e598db0c1de1',
 }
 
 # Rationalized from https://en.wikipedia.org/wiki/Xcode.
diff --git a/recipes/recipe_modules/osx_sdk/examples/full.expected/ancient_version.json b/recipes/recipe_modules/osx_sdk/examples/full.expected/ancient_version.json
index 958834a45..8cc4536e1 100644
--- a/recipes/recipe_modules/osx_sdk/examples/full.expected/ancient_version.json
+++ b/recipes/recipe_modules/osx_sdk/examples/full.expected/ancient_version.json
@@ -6,7 +6,7 @@
       "-root",
       "[CACHE]/osx_sdk",
       "-ensure-file",
-      "infra/tools/mac_toolchain/${platform} git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748",
+      "infra/tools/mac_toolchain/${platform} git_revision:723fc1a6c8cdf2631a57851f5610e598db0c1de1",
       "-max-threads",
       "0",
       "-json-output",
@@ -19,7 +19,7 @@
       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
       "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:9a1\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:723\", @@@",
       "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/mac_toolchain/resolved-platform\"@@@",
       "@@@STEP_LOG_LINE@json.output@      }@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",
diff --git a/recipes/recipe_modules/osx_sdk/examples/full.expected/automatic_version.json b/recipes/recipe_modules/osx_sdk/examples/full.expected/automatic_version.json
index fb1a801f3..f64e99b9b 100644
--- a/recipes/recipe_modules/osx_sdk/examples/full.expected/automatic_version.json
+++ b/recipes/recipe_modules/osx_sdk/examples/full.expected/automatic_version.json
@@ -6,7 +6,7 @@
       "-root",
       "[CACHE]/osx_sdk",
       "-ensure-file",
-      "infra/tools/mac_toolchain/${platform} git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748",
+      "infra/tools/mac_toolchain/${platform} git_revision:723fc1a6c8cdf2631a57851f5610e598db0c1de1",
       "-max-threads",
       "0",
       "-json-output",
@@ -19,7 +19,7 @@
       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
       "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:9a1\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:723\", @@@",
       "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/mac_toolchain/resolved-platform\"@@@",
       "@@@STEP_LOG_LINE@json.output@      }@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",
diff --git a/recipes/recipe_modules/osx_sdk/examples/full.expected/explicit_version.json b/recipes/recipe_modules/osx_sdk/examples/full.expected/explicit_version.json
index 57c06b8e5..c5541e872 100644
--- a/recipes/recipe_modules/osx_sdk/examples/full.expected/explicit_version.json
+++ b/recipes/recipe_modules/osx_sdk/examples/full.expected/explicit_version.json
@@ -6,7 +6,7 @@
       "-root",
       "[CACHE]/osx_sdk",
       "-ensure-file",
-      "infra/tools/mac_toolchain/${platform} git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748",
+      "infra/tools/mac_toolchain/${platform} git_revision:723fc1a6c8cdf2631a57851f5610e598db0c1de1",
       "-max-threads",
       "0",
       "-json-output",
@@ -19,7 +19,7 @@
       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
       "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:9a1\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:723\", @@@",
       "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/mac_toolchain/resolved-platform\"@@@",
       "@@@STEP_LOG_LINE@json.output@      }@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",
diff --git a/recipes/recipe_modules/osx_sdk/examples/full.expected/mac.json b/recipes/recipe_modules/osx_sdk/examples/full.expected/mac.json
index b8834c09d..7b89e2204 100644
--- a/recipes/recipe_modules/osx_sdk/examples/full.expected/mac.json
+++ b/recipes/recipe_modules/osx_sdk/examples/full.expected/mac.json
@@ -6,7 +6,7 @@
       "-root",
       "[CACHE]/osx_sdk",
       "-ensure-file",
-      "infra/tools/mac_toolchain/${platform} git_revision:9a1adc55bf4a1173784da3ba2f8cb06421606748",
+      "infra/tools/mac_toolchain/${platform} git_revision:723fc1a6c8cdf2631a57851f5610e598db0c1de1",
       "-max-threads",
       "0",
       "-json-output",
@@ -19,7 +19,7 @@
       "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
       "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
       "@@@STEP_LOG_LINE@json.output@      {@@@",
-      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:9a1\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-git_revision:723\", @@@",
       "@@@STEP_LOG_LINE@json.output@        \"package\": \"infra/tools/mac_toolchain/resolved-platform\"@@@",
       "@@@STEP_LOG_LINE@json.output@      }@@@",
       "@@@STEP_LOG_LINE@json.output@    ]@@@",