diff --git a/AUTHORS b/AUTHORS
index eb78d4b70..4512ce300 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -46,6 +46,7 @@ Ronald de Man (syzygy1)
 Sebastian Buchwald (UniQP)
 sf-x
 Shahin M. Shahin (peregrineshahin)
+Shawn Xu (xu-shawn)
 Siad Daboul (TopoIogist)
 Stefano Cardanobile (Stefano80)
 Stéphane Nicolet (snicolet)
diff --git a/server/fishtest/api.py b/server/fishtest/api.py
index 0a3f85afa..f96ad9276 100644
--- a/server/fishtest/api.py
+++ b/server/fishtest/api.py
@@ -34,7 +34,7 @@
 according to the route/URL mapping defined in `__init__.py`.
 """
 
-WORKER_VERSION = 246
+WORKER_VERSION = 247
 
 
 @exception_view_config(HTTPException)
diff --git a/worker/sri.txt b/worker/sri.txt
index a99ede218..09d4a4c87 100644
--- a/worker/sri.txt
+++ b/worker/sri.txt
@@ -1 +1 @@
-{"__version": 246, "updater.py": "Mg+pWOgGA0gSo2TuXuuLCWLzwGwH91rsW1W3ixg3jYauHQpRMtNdGnCfuD1GqOhV", "worker.py": "NW2mz+hDNprnOcMpw6k8rGUEXE4QvZwkWPma8kYg0uswQ7gQ+OIXBDFK7Fhz/Brt", "games.py": "8UyMjj/55AlxsO+2R1R92NasutgdHbLH6K9rxJfTD4cq02JTyOP93IoOZ1H7we9R"}
+{"__version": 247, "updater.py": "Mg+pWOgGA0gSo2TuXuuLCWLzwGwH91rsW1W3ixg3jYauHQpRMtNdGnCfuD1GqOhV", "worker.py": "fnKb7BjtNafSyeNEDD4R8km3YFzO0SvQHVdn252B3lDsV2wxLr3mG6SxqCVw8Sqg", "games.py": "8UyMjj/55AlxsO+2R1R92NasutgdHbLH6K9rxJfTD4cq02JTyOP93IoOZ1H7we9R"}
diff --git a/worker/worker.py b/worker/worker.py
index 058334e8e..3ace7e15d 100644
--- a/worker/worker.py
+++ b/worker/worker.py
@@ -60,7 +60,7 @@
 # So we make sure to use the locally installed one.
 
 
-LOCK_FILE = Path(__file__).resolve().parent / "worker.lock"
+LOCK_FILE = Path(__file__).resolve().parent / "fishtest_worker.lock"
 
 # Minimum requirement of compiler version for Stockfish.
 MIN_GCC_MAJOR = 7
@@ -69,7 +69,7 @@
 MIN_CLANG_MAJOR = 8
 MIN_CLANG_MINOR = 0
 
-WORKER_VERSION = 246
+WORKER_VERSION = 247
 FILE_LIST = ["updater.py", "worker.py", "games.py"]
 HTTP_TIMEOUT = 30.0
 INITIAL_RETRY_TIME = 15.0