diff --git a/verl/single_controller/__init__.py b/verl/single_controller/__init__.py
index bd850b79..a169d567 100644
--- a/verl/single_controller/__init__.py
+++ b/verl/single_controller/__init__.py
@@ -16,5 +16,5 @@
 
 version_folder = os.path.dirname(os.path.join(os.path.abspath(__file__)))
 
-with open(os.path.join(version_folder, 'version/version')) as f:
+with open(os.path.join(os.path.join(version_folder, os.pardir), 'version/version')) as f:
     __version__ = f.read().strip()
diff --git a/verl/single_controller/version/version b/verl/single_controller/version/version
deleted file mode 100644
index 7bcd0e36..00000000
--- a/verl/single_controller/version/version
+++ /dev/null
@@ -1 +0,0 @@
-0.0.2
\ No newline at end of file