diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8bbac64..0b590ba 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -75,10 +75,16 @@ jobs:
   Python:
     name: Linux Python
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.7", "pypy3.8", "pypy3.9", "pypy3.10"]
+        os: [ubuntu-latest]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.6", "pypy3.7", "pypy3.8", "pypy3.9", "pypy3.10"]
+        include:
+          - os: ubuntu-22.04
+            python-version: "3.7"
+          - os: ubuntu-20.04
+            python-version: "3.6"
       fail-fast: false
     steps:
     - uses: actions/checkout@v4