diff --git a/.github/workflows/test-pypy.yml b/.github/workflows/test-pypy.yml
index 2bd0441..520a794 100644
--- a/.github/workflows/test-pypy.yml
+++ b/.github/workflows/test-pypy.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-latest]
+        os: [macos-latest, windows-latest, ubuntu-latest]
         pypy:
         - 'pypy-2.7'
         - 'pypy-3.7'
diff --git a/.github/workflows/test-python.yml b/.github/workflows/test-python.yml
index 8f23301..80c8be7 100644
--- a/.github/workflows/test-python.yml
+++ b/.github/workflows/test-python.yml
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        os: [macos-latest, windows-latest, ubuntu-20.04]
     steps:
     - name: Checkout
       uses: actions/checkout@v2
@@ -38,7 +38,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        os: [macos-latest, windows-latest, ubuntu-20.04]
         python: [3.5.4, 3.6.7, 3.7.5, 3.8.1]
     steps:
     - name: Checkout
@@ -68,7 +68,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [macos-latest, windows-latest, ubuntu-18.04, ubuntu-20.04]
+        os: [macos-latest, windows-latest, ubuntu-20.04]
     steps:
     - name: Checkout
       uses: actions/checkout@v2
diff --git a/dist/setup/index.js b/dist/setup/index.js
index 0448f36..7167da1 100644
--- a/dist/setup/index.js
+++ b/dist/setup/index.js
@@ -6479,6 +6479,9 @@ function run() {
                     core.info(`Successfully setup PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`);
                 }
                 else {
+                    if (version.trim().startsWith('2')) {
+                        core.warning('The support for python 2.7 will be removed on June 19. Related issue: https://github.com/actions/setup-python/issues/672');
+                    }
                     const installed = yield finder.useCpythonVersion(version, arch);
                     pythonVersion = installed.version;
                     core.info(`Successfully setup ${installed.impl} (${pythonVersion})`);
diff --git a/src/setup-python.ts b/src/setup-python.ts
index 2f94657..9231b31 100644
--- a/src/setup-python.ts
+++ b/src/setup-python.ts
@@ -34,6 +34,11 @@ async function run() {
           `Successfully setup PyPy ${installed.resolvedPyPyVersion} with Python (${installed.resolvedPythonVersion})`
         );
       } else {
+        if (version.trim().startsWith('2')) {
+          core.warning(
+            'The support for python 2.7 will be removed on June 19. Related issue: https://github.com/actions/setup-python/issues/672'
+          );
+        }
         const installed = await finder.useCpythonVersion(version, arch);
         pythonVersion = installed.version;
         core.info(`Successfully setup ${installed.impl} (${pythonVersion})`);