--- a/mozilla/project_branches.py
+++ b/mozilla/project_branches.py
@@ -147,17 +147,17 @@ PROJECT_BRANCHES = {
             }
         },
     },
     'cypress': {
         'enable_perproduct_builds': False,
         'enable_talos': True,
     },
     'date': {
-        'gecko_version': 36,
+        'gecko_version': 37,
         'mozharness_repo_path': 'users/nthomas_mozilla.com/mozharness-build-promotion',
         'mozharness_repo': 'https://hg.mozilla.org/users/nthomas_mozilla.com/mozharness-build-promotion',
         'mozharness_tag': 'default',
         'desktop_mozharness_builds_enabled': True,
         'use_mozharness_repo_cache': False,
         'branch_projects': [],
         'enable_talos': True,
         'lock_platforms': True,