diff --git a/.github/workflows/update-caret-version.yaml b/.github/workflows/update-caret-version.yaml
index dede072..87c402e 100644
--- a/.github/workflows/update-caret-version.yaml
+++ b/.github/workflows/update-caret-version.yaml
@@ -30,7 +30,8 @@ jobs:
       - name: Get New Branch and Tag
         id: tag
         run: |
-          latest_tag=$(curl -s https://api.github.com/repos/${GITHUB_REPOSITORY}/tags | jq -r .[0].name)
+          # latest_tag=$(curl -s https://api.github.com/repos/${GITHUB_REPOSITORY}/tags | jq -r .[0].name)
+          latest_tag=$(curl -s https://api.github.com/repos/tier4/ros2caret/tags | jq -r .[0].name)
           current_tag=${{ github.ref_name }}
           branch=rc/$current_tag
           echo "LATEST_TAG_NAME=$latest_tag" >> "$GITHUB_OUTPUT"
diff --git a/ros2caret/__version__.py b/ros2caret/__version__.py
deleted file mode 100644
index 69eb073..0000000
--- a/ros2caret/__version__.py
+++ /dev/null
@@ -1,15 +0,0 @@
-# Copyright 2021 Research Institute of Systems Planning, Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-__version__ = 'v0.4.24'