diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 965f201cc..e708d6792 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,17 +15,8 @@ jobs:
   tests:
     strategy:
       matrix:
-        include:
-          - python-version: "3.9"
-            postgres-version: "13"
-          - python-version: "3.10"
-            postgres-version: "14"
-          - python-version: "3.11"
-            postgres-version: "15"
-          - python-version: "3.12"
-            postgres-version: "16"
-          - python-version: "3.13"
-            postgres-version: "17"
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+        postgres-version: ["13", "14", "15", "16", "17"]
 
     name: "py${{ matrix.python-version }}"
     runs-on: ubuntu-latest