diff --git a/.github/workflows/on-push.yml b/.github/workflows/on-push.yml
index c71b376..3c4f553 100644
--- a/.github/workflows/on-push.yml
+++ b/.github/workflows/on-push.yml
@@ -18,7 +18,7 @@ jobs:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
         source <(curl -sL http://ci.q-ctrl.com)
-        ./ci vault login -r ${{ secrets.VAULT_ROLE_ID }} -s ${{ secrets.VAULT_SECRET_ID }}        
+        ./ci vault login -r ${{ secrets.VAULT_ROLE_ID }} -s ${{ secrets.VAULT_SECRET_ID }}
         ./ci docker run qctrl/ci-images:python-3.7-ci /scripts/housekeeping.sh
 
   linting:
@@ -44,7 +44,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: [3.7, 3.8, 3.9]
+        python: [3.7, 3.8]
     steps:
     - uses: actions/checkout@v1
     - name: Install Python dependencies
diff --git a/poetry.lock b/poetry.lock
index 315c7af..c74635d 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1326,8 +1326,8 @@ testing = ["pytest (>=4.6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytes
 
 [metadata]
 lock-version = "1.1"
-python-versions = ">=3.7,<3.10"
-content-hash = "b1b949f1ae83eb6deecc0732914a567138717410e48ee1e33418f21b72c7f3e9"
+python-versions = ">=3.7,<3.9"
+content-hash = "966424ef3d2eee67c8967d043d59a8ee90cff4feef57b16bf298d33b2ee9d3ca"
 
 [metadata.files]
 alabaster = [
diff --git a/pyproject.toml b/pyproject.toml
index e09c340..e4281c3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,7 +36,7 @@ packages = [
 ]
 
 [tool.poetry.dependencies]  # https://poetry.eustace.io/docs/versions
-python = ">=3.7,<3.10"
+python = ">=3.7,<3.9"
 numpy = "^1.16"
 scipy = "^1.3"
 toml = "^0.10.0"