diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bd84fec3..3ebf48d5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -23,16 +23,17 @@ jobs:
       # You can use PyPy versions in python-version.
       # For example, pypy2 and pypy3
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+          allow-prereleases: true
 
       # Runs a single command using the runners shell
       - name: Run all tests
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 56806d35..ba276c51 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,8 +1,4 @@
 -r requirements.txt
 bottle
 pytest
-# pytest-cov 2.6.0 has increased the version requirement 
-# for the coverage package from >=3.7.1 to >=4.4, 
-# which is in conflict with the version requirement 
-# defined by the python-coveralls package for coverage==4.0.3
-pytest-cov>=2.4.0,<2.6
+pytest-cov
diff --git a/setup.py b/setup.py
index 237d7aeb..e89e9216 100644
--- a/setup.py
+++ b/setup.py
@@ -25,4 +25,15 @@
     long_description=long_description,
     long_description_content_type="text/markdown",
     python_requires=">=3.7",
+    classifiers=[
+        "Programming Language :: Python",
+        "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
+    ],
 )