diff --git a/bin/hgcs_master.py b/bin/hgcs_master.py
index ba58d52..378c3d4 100644
--- a/bin/hgcs_master.py
+++ b/bin/hgcs_master.py
@@ -88,7 +88,7 @@ def main():
     # master log
     main_logger = logging.getLogger("hgcs_main")
     utils.setup_logger(main_logger, pid=os.getpid(), colored=logger_format_colored, to_file=log_file)
-    main_logger.info(f"This is HGCS")
+    main_logger.info("This is HGCS")
     # run threads
     for thr in thread_list:
         print(f"Start thread of agent {thr.__class__.__name__}")
diff --git a/lib/__init__.py b/lib/__init__.py
deleted file mode 100644
index e69de29..0000000
diff --git a/pkg_info.py b/pkg_info.py
index 5b7bb79..4e5ce2b 100644
--- a/pkg_info.py
+++ b/pkg_info.py
@@ -1 +1 @@
-release_version = "2.0.1"
+release_version = "2.0.2"