diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index da017a9..95f732e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -17,8 +17,8 @@ jobs:
     name: black
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: '3.10'
     - name: Setup
@@ -29,8 +29,8 @@ jobs:
     name: flake8
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: '3.10'
     - name: Setup
@@ -41,8 +41,8 @@ jobs:
     name: isort
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       with:
         python-version: '3.10'
     - name: Setup
@@ -70,14 +70,14 @@ jobs:
       matrix:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
-    - uses: actions/checkout@v1
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       name: Install Python
       with:
         python-version: '3.10'
     - name: Install cibuildwheel
       run: |
-        python -m pip install cibuildwheel==2.3.1
+        python -m pip install cibuildwheel
     - uses: ilammy/msvc-dev-cmd@v1
       if: startsWith(matrix.os, 'windows')
     - name: Build wheels
@@ -94,7 +94,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-       python_tag: [ "cp37-*", "cp38-*", "cp39-*", "cp310-*"]
+       python_tag: [ "cp39-*", "cp310-*","cp311-*", "cp312-*"]
     env:
       CIBW_ARCHS_LINUX: aarch64
       CIBW_BUILD: ${{matrix.python_tag}}
@@ -103,14 +103,14 @@ jobs:
       CIBW_BEFORE_BUILD_LINUX: ""
 
     steps:
-    - uses: actions/checkout@v1
-    - uses: actions/setup-python@v2
+    - uses: actions/checkout@v3
+    - uses: actions/setup-python@v4
       name: Install Python
       with:
-        python-version: '3.10'
+        python-version: '3.11'
     - name: Install cibuildwheel
       run: |
-        python -m pip install cibuildwheel==2.3.1
+        python -m pip install cibuildwheel
     - uses: docker/setup-qemu-action@v1
       name: Set up QEMU
     - name: Build wheels
@@ -133,8 +133,8 @@ jobs:
       fail-fast: true
 
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v2
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
         name: Install Python
         with:
           python-version: '3.10'
diff --git a/mgrs/__init__.py b/mgrs/__init__.py
index 2140533..c33acda 100644
--- a/mgrs/__init__.py
+++ b/mgrs/__init__.py
@@ -111,7 +111,6 @@ def toLatLon(self, MGRS, inDegrees=True):
         return (lat, lon)
 
     def MGRSToUTM(self, MGRS, encoding="utf-8"):
-
         if type(MGRS) is str:
             mgrs = MGRS.encode(encoding)
         else:
diff --git a/mgrs/core.py b/mgrs/core.py
index afdd22a..d941a26 100644
--- a/mgrs/core.py
+++ b/mgrs/core.py
@@ -140,7 +140,7 @@ def _load_library(dllname, loadfunction, dllpaths=("",)):
 
         free = None
 
-        def free(m):
+        def free(m):  # noqa: F811
             global free
             try:
                 free = ctypes.cdll.msvcrt.free(m)
@@ -151,7 +151,6 @@ def free(m):
         raise
 
 elif os.name == "posix":
-
     soabi = sysconfig.get_config_var("SOABI")
     lib_name = "libmgrs.so"
     if soabi:
diff --git a/setup.py b/setup.py
index 9f11872..3258d56 100644
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@
 
 setup(
     name="mgrs",
-    version="1.4.5",
+    version="1.4.6",
     description="MGRS coordinate conversion for Python",
     license="MIT",
     keywords="gis coordinate conversion",