diff --git a/recipes/recipe_modules/gclient/api.py b/recipes/recipe_modules/gclient/api.py
index 758ed0e7c..92b4ee2b6 100644
--- a/recipes/recipe_modules/gclient/api.py
+++ b/recipes/recipe_modules/gclient/api.py
@@ -100,7 +100,7 @@ class GclientApi(recipe_api.RecipeApi):
           self.m.buildbucket.build.builder.builder,
           self.m.buildbucket.build.id)
     with self.m.context(env=env, env_suffixes=env_suffixes):
-      cmd = ['python3', '-u', self.repo_resource('gclient.py')] + cmd
+      cmd = ['vpython3', '-u', self.repo_resource('gclient.py')] + cmd
       return self.m.step(prefix + name,
                          cmd,
                          infra_step=infra_step,
diff --git a/recipes/recipe_modules/gclient/examples/full.expected/basic.json b/recipes/recipe_modules/gclient/examples/full.expected/basic.json
index 74f6f075d..6a78985ad 100644
--- a/recipes/recipe_modules/gclient/examples/full.expected/basic.json
+++ b/recipes/recipe_modules/gclient/examples/full.expected/basic.json
@@ -1,7 +1,7 @@
 [
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "config",
@@ -18,7 +18,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "sync",
@@ -55,7 +55,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -74,7 +74,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -93,7 +93,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "config",
@@ -111,7 +111,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "sync",
@@ -155,7 +155,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -175,7 +175,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -220,7 +220,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "runhooks"
diff --git a/recipes/recipe_modules/gclient/examples/full.expected/revision.json b/recipes/recipe_modules/gclient/examples/full.expected/revision.json
index f9d42ee46..d9a856998 100644
--- a/recipes/recipe_modules/gclient/examples/full.expected/revision.json
+++ b/recipes/recipe_modules/gclient/examples/full.expected/revision.json
@@ -1,7 +1,7 @@
 [
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "config",
@@ -33,7 +33,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "sync",
@@ -87,7 +87,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -121,7 +121,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -155,7 +155,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "config",
@@ -188,7 +188,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "sync",
@@ -247,7 +247,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -282,7 +282,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -354,7 +354,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "runhooks"
diff --git a/recipes/recipe_modules/gclient/examples/full.expected/tryserver.json b/recipes/recipe_modules/gclient/examples/full.expected/tryserver.json
index 4771fd068..3062f0d9f 100644
--- a/recipes/recipe_modules/gclient/examples/full.expected/tryserver.json
+++ b/recipes/recipe_modules/gclient/examples/full.expected/tryserver.json
@@ -1,7 +1,7 @@
 [
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "config",
@@ -33,7 +33,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "sync",
@@ -85,7 +85,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -119,7 +119,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -153,7 +153,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "config",
@@ -186,7 +186,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "sync",
@@ -245,7 +245,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -280,7 +280,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
@@ -352,7 +352,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "runhooks"
diff --git a/recipes/recipe_modules/gclient/tests/diff_deps.expected/basic.json b/recipes/recipe_modules/gclient/tests/diff_deps.expected/basic.json
index 6e6c76dfa..24276f3fe 100644
--- a/recipes/recipe_modules/gclient/tests/diff_deps.expected/basic.json
+++ b/recipes/recipe_modules/gclient/tests/diff_deps.expected/basic.json
@@ -27,7 +27,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
diff --git a/recipes/recipe_modules/gclient/tests/diff_deps.expected/dont have revision yet.json b/recipes/recipe_modules/gclient/tests/diff_deps.expected/dont have revision yet.json
index 04e47e394..bb279262a 100644
--- a/recipes/recipe_modules/gclient/tests/diff_deps.expected/dont have revision yet.json	
+++ b/recipes/recipe_modules/gclient/tests/diff_deps.expected/dont have revision yet.json	
@@ -27,7 +27,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
diff --git a/recipes/recipe_modules/gclient/tests/diff_deps.expected/no change, exception.json b/recipes/recipe_modules/gclient/tests/diff_deps.expected/no change, exception.json
index e70c9f0fe..719cc2fc7 100644
--- a/recipes/recipe_modules/gclient/tests/diff_deps.expected/no change, exception.json	
+++ b/recipes/recipe_modules/gclient/tests/diff_deps.expected/no change, exception.json	
@@ -27,7 +27,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]/gclient.py",
       "recurse",
diff --git a/recipes/recipe_modules/gclient/tests/diff_deps.expected/windows.json b/recipes/recipe_modules/gclient/tests/diff_deps.expected/windows.json
index a4079ff53..66d4768f8 100644
--- a/recipes/recipe_modules/gclient/tests/diff_deps.expected/windows.json
+++ b/recipes/recipe_modules/gclient/tests/diff_deps.expected/windows.json
@@ -27,7 +27,7 @@
   },
   {
     "cmd": [
-      "python3",
+      "vpython3",
       "-u",
       "RECIPE_REPO[depot_tools]\\gclient.py",
       "recurse",