diff --git a/.github/workflows/check-standard.yaml b/.github/workflows/check-standard.yaml
index ef8a366..8bcc1bf 100644
--- a/.github/workflows/check-standard.yaml
+++ b/.github/workflows/check-standard.yaml
@@ -19,8 +19,8 @@ jobs:
           - "3.11"
           - "3.10"
           - "3.9"
-          - "3.8"
-          - "3.7"
+          # - "3.8"
+          # - "3.7"
         os:
           - ubuntu-20.04
           - macos-12
diff --git a/.github/workflows/pypi_publish.yaml b/.github/workflows/pypi_publish.yaml
index 83dd314..44fa331 100644
--- a/.github/workflows/pypi_publish.yaml
+++ b/.github/workflows/pypi_publish.yaml
@@ -10,7 +10,7 @@ jobs:
         uses: actions/checkout@v3
         with:
           fetch-depth: 0
-      - run: python3 -m pip install --upgrade build && python3 -m build
+      - run: python3 -m pip install --upgrade pip && python3 -m pip install tox && python3 -m pip install --upgrade build && python3 -m build
       - name: Publish package
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
diff --git a/tox.ini b/tox.ini
index 76e6284..f3df652 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py37, py38, py39, py310, py311, flake8
+envlist = py39, py310, py311, flake8
 
 [travis]
 python =
@@ -8,7 +8,6 @@ python =
     3.9: py39
     3.8: py38
     3.7: py37
-    3.6: py36
 
 [testenv:flake8]
 basepython = python