diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b373493..d1e4b6c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,15 +12,14 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix:
         python-version:
-        - '3.7'
-        - '3.8'
         - '3.9'
         - '3.10'
+        - '3.11'
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
@@ -41,7 +40,7 @@ jobs:
         poetry run pytest
 
   actionlint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
     - uses: actions/checkout@v3
     - name: Check workflow files