diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1278fe6..a9f90a7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -13,17 +13,15 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest]
         python-version:
-          - '2.7'
           - '3.7'
           - '3.8'
           - '3.9'
           - '3.10'
         include:
-          # Python 3.6 is not supported in Ubuntu 22.04, so manually adding it to matrix with older version of Ubuntu
-          - os: ubuntu-20.04
-            python-version: '3.6'
+          - os: ubuntu-22.04
+            python-version: '3.7'
           - os: windows-latest
-            python-version: '3.6'
+            python-version: '3.7'
 
     runs-on: ${{ matrix.os }}
 
@@ -51,7 +49,7 @@ jobs:
 
     - name: Run tests with PyTest 5
       run: tox
-      if: ${{ matrix.python-version != '2.7' && matrix.python-version != '3.10' }}
+      if: ${{ matrix.python-version != '3.10' }}
       env:
         PLATFORM: ${{ matrix.os }}
         PYTEST_MAJOR_VERSION: 5
@@ -59,7 +57,6 @@ jobs:
 
     - name: Run tests with PyTest 6
       run: tox
-      if: ${{ matrix.python-version != '2.7' }}
       env:
         PLATFORM: ${{ matrix.os }}
         PYTEST_MAJOR_VERSION: 6
@@ -67,7 +64,6 @@ jobs:
 
     - name: Run tests with PyTest 7
       run: tox
-      if: ${{ matrix.python-version != '2.7' }}
       env:
         PLATFORM: ${{ matrix.os }}
         PYTEST_MAJOR_VERSION: 7
diff --git a/setup.py b/setup.py
index a5f563f..82548c3 100644
--- a/setup.py
+++ b/setup.py
@@ -15,13 +15,17 @@
     author_email="utagawakiki@gmail.com",
     url="https://github.com/pytest-dev/pytest-github-actions-annotate-failures",
     license="MIT",
-    classifiers=["Framework :: Pytest",],
-    python_requires=">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*",
+    classifiers=[
+        "Framework :: Pytest",
+    ],
+    python_requires=">=3.7",
     packages=find_packages(),
     entry_points={
         "pytest11": [
             "pytest_github_actions_annotate_failures = pytest_github_actions_annotate_failures.plugin",
         ],
     },
-    install_requires=["pytest>=4.0.0",],
+    install_requires=[
+        "pytest>=4.0.0",
+    ],
 )
diff --git a/tox.ini b/tox.ini
index 83ed187..6fcee73 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,8 +3,6 @@ envlist = py27-pytest4-{linux,windows}, py{36,37,38,39}-pytest{4,5,6,7}-{linux,w
 
 [gh-actions]
 python =
-    2.7: py27
-    3.6: py36
     3.7: py37
     3.8: py38
     3.9: py39