diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 6740e15..0638986 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -16,9 +16,9 @@ jobs:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install Dependencies
diff --git a/docs/changelog.rst b/docs/changelog.rst
index 9fb50d6..a3ea1ab 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -85,3 +85,7 @@ here. For additional detail, read the complete `commit history`_.
 * Fixing 'requests.api' has no attribute 'Session' (#47) @vhelke
 * Fix get_proxy_url adding unnecessary '/' (#41) @seayjohnny
 * Fix a few typos in changelog (#45) @intgr
+
+**python-cas 1.7.1** ``[2025-11-05]``
+
+* Removed dependency on package: six
diff --git a/docs/conf.py b/docs/conf.py
index df232b9..7e3c9ca 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -46,7 +46,7 @@
 
 # General information about the project.
 project = 'Python CAS'
-copyright = '2015, Ming Chen'
+copyright = '2015-2025, Ming Chen'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -55,7 +55,7 @@
 # The short X.Y version.
 version = '1.7'
 # The full version, including alpha/beta/rc tags.
-release = '1.7.0'
+release = '1.7.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/setup.py b/setup.py
index eaf3342..1beceb9 100755
--- a/setup.py
+++ b/setup.py
@@ -39,5 +39,5 @@
     py_modules=['cas'],
     url='https://github.com/python-cas/python-cas',
     download_url ='https://github.com/python-cas/python-cas/releases',
-    version='1.7.0',
+    version='1.7.1',
 )