--- a/testing/mozharness/configs/builds/releng_sub_linux_configs/64_valgrind.py
+++ b/testing/mozharness/configs/builds/releng_sub_linux_configs/64_valgrind.py
@@ -8,18 +8,18 @@ config = {
         'clone-tools',
         'checkout-sources',
         #'setup-mock',
         'build',
         #'upload-files',
         #'sendchange',
         'check-test',
         'valgrind-test',
-        'generate-build-stats',
-        'update',
+        #'generate-build-stats',
+        #'update',
     ],
     'stage_platform': 'linux64-valgrind',
     'publish_nightly_en_US_routes': False,
     'build_type': 'valgrind',
     'tooltool_manifest_src': "browser/config/tooltool-manifests/linux64/\
 releng.manifest",
     'platform_supports_post_upload_to_latest': False,
     'enable_signing': False,

--- a/testing/taskcluster/tasks/builds/opt_linux64_valgrind.yml
+++ b/testing/taskcluster/tasks/builds/opt_linux64_valgrind.yml
@@ -12,17 +12,17 @@ task:
     - 'index.buildbot.branches.{{project}}.linux64-valgrind'
     - 'index.buildbot.revisions.{{head_rev}}.{{project}}.linux64-valgrind'
 
   workerType: opt-linux64
 
   payload:
     env:
       MH_CUSTOM_BUILD_VARIANT_CFG: 'valgrind'
-      MOZHARNESS_ACTIONS: 'get-secrets build valgrind-test generate-build-stats update'
+      MOZHARNESS_ACTIONS: 'get-secrets build valgrind-test generate-build-stats'
 
     maxRunTime: 72000
 
   extra:
     treeherder:
       groupSymbol: tc
       groupName: Submitted by taskcluster
       symbol: V