diff --git a/rhodecode/lib/rc_cache/backends.py b/rhodecode/lib/rc_cache/backends.py
--- a/rhodecode/lib/rc_cache/backends.py
+++ b/rhodecode/lib/rc_cache/backends.py
@@ -295,6 +295,7 @@ class BaseRedisBackend(redis_backend.Red
                 name=lock_key,
                 expire=self.lock_timeout,
                 auto_renewal=False,
+                strict=True,
             )
             return lock
         else: