--- a/mozilla/project_branches.py
+++ b/mozilla/project_branches.py
@@ -240,33 +240,33 @@ PROJECT_BRANCHES = {
         'enable_opt_unittests': False,
         'enable_debug_unittests': False,
         'enable_talos': False,
         ##
         'lock_platforms': True,
         'platforms': {
             # use default 'dep-signing' for now while in development
             'linux': {
-                # 'dep_signing_servers': 'release-signing',
+                'dep_signing_servers': 'release-signing',
                 "slave_platforms": [],
             },
             'linux64': {
-                # 'dep_signing_servers': 'release-signing',
+                'dep_signing_servers': 'release-signing',
                 "slave_platforms": [],
             },
             'win32': {
-                # 'dep_signing_servers': 'release-signing',
+                'dep_signing_servers': 'release-signing',
                 "slave_platforms": [],
             },
             'win64': {
-                # 'dep_signing_servers': 'release-signing',
+                'dep_signing_servers': 'release-signing',
                 "slave_platforms": [],
             },
             'macosx64': {
-                # 'dep_signing_servers': 'release-signing',
+                'dep_signing_servers': 'release-signing',
                 "slave_platforms": [],
             },
             'linux-debug': {
                 "slave_platforms": [],
             },
             'linux64-debug': {
                 "slave_platforms": [],
             },